Trigonometría Ejemplos

$\frac{\sin^{3} (x) + \cos^{3} (x)}{1 - 2 \cos^{2} (x)} = \frac{\sec (x) - \sin (x)}{\tan (x) - 1}$

Step 1

Resta $\frac{\sec (x) - \sin (x)}{\tan (x) - 1}$ de ambos lados de la ecuación.

$\frac{\sin^{3} (x) + \cos^{3} (x)}{1 - 2 \cos^{2} (x)} - \frac{\sec (x) - \sin (x)}{\tan (x) - 1} = 0$

Step 2

Simplifica $\frac{\sin^{3} (x) + \cos^{3} (x)}{1 - 2 \cos^{2} (x)} - \frac{\sec (x) - \sin (x)}{\tan (x) - 1}$ .

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Simplifica cada término.

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Simplifica el numerador.

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Dado que ambos términos son cubos perfectos, factoriza con la fórmula de la suma de cubos, $a^{3} + b^{3} = (a + b) (a^{2} - a b + b^{2})$ , donde $a = \sin (x)$ y $b = \cos (x)$ .

$\frac{(\sin (x) + \cos (x)) (\sin^{2} (x) - \sin (x) \cos (x) + \cos^{2} (x))}{1 - 2 \cos^{2} (x)} - \frac{\sec (x) - \sin (x)}{\tan (x) - 1} = 0$

Simplifica.

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Reorganiza los términos.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + \sin^{2} (x) + \cos^{2} (x))}{1 - 2 \cos^{2} (x)} - \frac{\sec (x) - \sin (x)}{\tan (x) - 1} = 0$

Aplica la identidad pitagórica.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{\sec (x) - \sin (x)}{\tan (x) - 1} = 0$

Reescribe $\sec (x)$ en términos de senos y cosenos.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{\frac{1}{\cos (x)} - \sin (x)}{\tan (x) - 1} = 0$

Reescribe $\tan (x)$ en términos de senos y cosenos.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{\frac{1}{\cos (x)} - \sin (x)}{\frac{\sin (x)}{\cos (x)} - 1} = 0$

Multiplica el numerador y el denominador de la fracción compleja por $\cos (x)$ .

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Multiplica $\frac{\frac{1}{\cos (x)} - \sin (x)}{\frac{\sin (x)}{\cos (x)} - 1}$ por $\frac{\cos (x)}{\cos (x)}$ .

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - (\frac{\cos (x)}{\cos (x)} \cdot \frac{\frac{1}{\cos (x)} - \sin (x)}{\frac{\sin (x)}{\cos (x)} - 1}) = 0$

Combinar.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{\cos (x) (\frac{1}{\cos (x)} - \sin (x))}{\cos (x) (\frac{\sin (x)}{\cos (x)} - 1)} = 0$

Aplica la propiedad distributiva.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{\cos (x) \frac{1}{\cos (x)} + \cos (x) (- \sin (x))}{\cos (x) \frac{\sin (x)}{\cos (x)} + \cos (x) \cdot - 1} = 0$

Simplifica mediante la cancelación.

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Cancela el factor común de $\cos (x)$ .

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Cancela el factor común.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{\cos (x) \frac{1}{\cos (x)} + \cos (x) (- \sin (x))}{\cos (x) \frac{\sin (x)}{\cos (x)} + \cos (x) \cdot - 1} = 0$

Reescribe la expresión.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{1 + \cos (x) (- \sin (x))}{\cos (x) \frac{\sin (x)}{\cos (x)} + \cos (x) \cdot - 1} = 0$

Cancela el factor común de $\cos (x)$ .

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Cancela el factor común.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{1 + \cos (x) (- \sin (x))}{\cos (x) \frac{\sin (x)}{\cos (x)} + \cos (x) \cdot - 1} = 0$

Reescribe la expresión.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{1 + \cos (x) (- \sin (x))}{\sin (x) + \cos (x) \cdot - 1} = 0$

Reescribe con la propiedad conmutativa de la multiplicación.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{1 - \cos (x) \sin (x)}{\sin (x) + \cos (x) \cdot - 1} = 0$

Simplifica el denominador.

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Mueve $- 1$ a la izquierda de $\cos (x)$ .

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{1 - \cos (x) \sin (x)}{\sin (x) - 1 \cdot \cos (x)} = 0$

Reescribe $- 1 \cos (x)$ como $- \cos (x)$ .

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} - \frac{1 - \cos (x) \sin (x)}{\sin (x) - \cos (x)} = 0$

Para escribir $\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)}$ como una fracción con un denominador común, multiplica por $\frac{\sin (x) - \cos (x)}{\sin (x) - \cos (x)}$ .

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} \cdot \frac{\sin (x) - \cos (x)}{\sin (x) - \cos (x)} - \frac{1 - \cos (x) \sin (x)}{\sin (x) - \cos (x)} = 0$

Para escribir $- \frac{1 - \cos (x) \sin (x)}{\sin (x) - \cos (x)}$ como una fracción con un denominador común, multiplica por $\frac{1 - 2 \cos^{2} (x)}{1 - 2 \cos^{2} (x)}$ .

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)} \cdot \frac{\sin (x) - \cos (x)}{\sin (x) - \cos (x)} - \frac{1 - \cos (x) \sin (x)}{\sin (x) - \cos (x)} \cdot \frac{1 - 2 \cos^{2} (x)}{1 - 2 \cos^{2} (x)} = 0$

Escribe cada expresión con un denominador común de $(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))$ , mediante la multiplicación de cada uno por un factor adecuado de $1$ .

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Multiplica $\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)}{1 - 2 \cos^{2} (x)}$ por $\frac{\sin (x) - \cos (x)}{\sin (x) - \cos (x)}$ .

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1) (\sin (x) - \cos (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} - \frac{1 - \cos (x) \sin (x)}{\sin (x) - \cos (x)} \cdot \frac{1 - 2 \cos^{2} (x)}{1 - 2 \cos^{2} (x)} = 0$

Multiplica $\frac{1 - \cos (x) \sin (x)}{\sin (x) - \cos (x)}$ por $\frac{1 - 2 \cos^{2} (x)}{1 - 2 \cos^{2} (x)}$ .

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1) (\sin (x) - \cos (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} - \frac{(1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(\sin (x) - \cos (x)) (1 - 2 \cos^{2} (x))} = 0$

Reordena los factores de $(\sin (x) - \cos (x)) (1 - 2 \cos^{2} (x))$ .

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1) (\sin (x) - \cos (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} - \frac{(1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Combina los numeradores sobre el denominador común.

$\frac{(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Simplifica el numerador.

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Expande $(\sin (x) + \cos (x)) (- \sin (x) \cos (x) + 1)$ con el método PEIU (primero, exterior, interior, ultimo).

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Aplica la propiedad distributiva.

$\frac{(\sin (x) (- \sin (x) \cos (x) + 1) + \cos (x) (- \sin (x) \cos (x) + 1)) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Aplica la propiedad distributiva.

$\frac{(\sin (x) (- \sin (x) \cos (x)) + \sin (x) \cdot 1 + \cos (x) (- \sin (x) \cos (x) + 1)) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Aplica la propiedad distributiva.

$\frac{(\sin (x) (- \sin (x) \cos (x)) + \sin (x) \cdot 1 + \cos (x) (- \sin (x) \cos (x)) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Simplifica cada término.

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Reescribe con la propiedad conmutativa de la multiplicación.

$\frac{(- \sin (x) \sin (x) \cos (x) + \sin (x) \cdot 1 + \cos (x) (- \sin (x) \cos (x)) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $- \sin (x) \sin (x)$ .

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Eleva $\sin (x)$ a la potencia de $1$ .

$\frac{(- (\sin^{1} (x) \sin (x)) \cos (x) + \sin (x) \cdot 1 + \cos (x) (- \sin (x) \cos (x)) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Eleva $\sin (x)$ a la potencia de $1$ .

$\frac{(- (\sin^{1} (x) \sin^{1} (x)) \cos (x) + \sin (x) \cdot 1 + \cos (x) (- \sin (x) \cos (x)) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{(- {\sin (x)}^{1 + 1} \cos (x) + \sin (x) \cdot 1 + \cos (x) (- \sin (x) \cos (x)) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $1$ y $1$ .

$\frac{(- \sin^{2} (x) \cos (x) + \sin (x) \cdot 1 + \cos (x) (- \sin (x) \cos (x)) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\sin (x)$ por $1$ .

$\frac{(- \sin^{2} (x) \cos (x) + \sin (x) + \cos (x) (- \sin (x) \cos (x)) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Reescribe con la propiedad conmutativa de la multiplicación.

$\frac{(- \sin^{2} (x) \cos (x) + \sin (x) - \cos (x) \sin (x) \cos (x) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $- \cos (x) \sin (x) \cos (x)$ .

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Eleva $\cos (x)$ a la potencia de $1$ .

$\frac{(- \sin^{2} (x) \cos (x) + \sin (x) - (\cos^{1} (x) \cos (x)) \sin (x) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Eleva $\cos (x)$ a la potencia de $1$ .

$\frac{(- \sin^{2} (x) \cos (x) + \sin (x) - (\cos^{1} (x) \cos^{1} (x)) \sin (x) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{(- \sin^{2} (x) \cos (x) + \sin (x) - {\cos (x)}^{1 + 1} \sin (x) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $1$ y $1$ .

$\frac{(- \sin^{2} (x) \cos (x) + \sin (x) - \cos^{2} (x) \sin (x) + \cos (x) \cdot 1) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\cos (x)$ por $1$ .

$\frac{(- \sin^{2} (x) \cos (x) + \sin (x) - \cos^{2} (x) \sin (x) + \cos (x)) (\sin (x) - \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Expande $(- \sin^{2} (x) \cos (x) + \sin (x) - \cos^{2} (x) \sin (x) + \cos (x)) (\sin (x) - \cos (x))$ mediante la multiplicación de cada término de la primera expresión por cada término de la segunda expresión.

$\frac{- \sin^{2} (x) \cos (x) \sin (x) - \sin^{2} (x) \cos (x) (- \cos (x)) + \sin (x) \sin (x) + \sin (x) (- \cos (x)) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) \sin (x) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Combina los términos opuestos en $- \sin^{2} (x) \cos (x) \sin (x) - \sin^{2} (x) \cos (x) (- \cos (x)) + \sin (x) \sin (x) + \sin (x) (- \cos (x)) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) \sin (x) + \cos (x) (- \cos (x))$ .

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Reordena los factores en los términos $\sin (x) (- \cos (x))$ y $\cos (x) \sin (x)$ .

$\frac{- \sin^{2} (x) \cos (x) \sin (x) - \sin^{2} (x) \cos (x) (- \cos (x)) + \sin (x) \sin (x) - \cos (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) \sin (x) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $- \cos (x) \sin (x)$ y $\cos (x) \sin (x)$ .

$\frac{- \sin^{2} (x) \cos (x) \sin (x) - \sin^{2} (x) \cos (x) (- \cos (x)) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + 0 + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $- \sin^{2} (x) \cos (x) \sin (x) - \sin^{2} (x) \cos (x) (- \cos (x)) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x))$ y $0$ .

$\frac{- \sin^{2} (x) \cos (x) \sin (x) - \sin^{2} (x) \cos (x) (- \cos (x)) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Simplifica cada término.

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Multiplica $\sin^{2} (x)$ por $\sin (x)$ sumando los exponentes.

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Mueve $\sin (x)$ .

$\frac{- (\sin (x) \sin^{2} (x)) \cos (x) - \sin^{2} (x) \cos (x) (- \cos (x)) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\sin (x)$ por $\sin^{2} (x)$ .

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Eleva $\sin (x)$ a la potencia de $1$ .

$\frac{- (\sin^{1} (x) \sin^{2} (x)) \cos (x) - \sin^{2} (x) \cos (x) (- \cos (x)) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{- {\sin (x)}^{1 + 2} \cos (x) - \sin^{2} (x) \cos (x) (- \cos (x)) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $1$ y $2$ .

$\frac{- \sin^{3} (x) \cos (x) - \sin^{2} (x) \cos (x) (- \cos (x)) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $- \sin^{2} (x) \cos (x) (- \cos (x))$ .

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Multiplica $- 1$ por $- 1$ .

$\frac{- \sin^{3} (x) \cos (x) + 1 \sin^{2} (x) \cos (x) \cos (x) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\sin^{2} (x)$ por $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos (x) \cos (x) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Eleva $\cos (x)$ a la potencia de $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) (\cos^{1} (x) \cos (x)) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Eleva $\cos (x)$ a la potencia de $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) (\cos^{1} (x) \cos^{1} (x)) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) {\cos (x)}^{1 + 1} + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $1$ y $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\sin (x) \sin (x)$ .

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Eleva $\sin (x)$ a la potencia de $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{1} (x) \sin (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Eleva $\sin (x)$ a la potencia de $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{1} (x) \sin^{1} (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + {\sin (x)}^{1 + 1} - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $1$ y $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin (x) \sin (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $- \cos^{2} (x) \sin (x) \sin (x)$ .

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Eleva $\sin (x)$ a la potencia de $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) (\sin^{1} (x) \sin (x)) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Eleva $\sin (x)$ a la potencia de $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) (\sin^{1} (x) \sin^{1} (x)) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) {\sin (x)}^{1 + 1} - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $1$ y $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) - \cos^{2} (x) \sin (x) (- \cos (x)) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\cos^{2} (x)$ por $\cos (x)$ sumando los exponentes.

Toca para ver más pasos...

Mueve $\cos (x)$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) - (\cos (x) \cos^{2} (x)) \sin (x) \cdot - 1 + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\cos (x)$ por $\cos^{2} (x)$ .

Toca para ver más pasos...

Eleva $\cos (x)$ a la potencia de $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) - (\cos^{1} (x) \cos^{2} (x)) \sin (x) \cdot - 1 + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) - {\cos (x)}^{1 + 2} \sin (x) \cdot - 1 + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $1$ y $2$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) - \cos^{3} (x) \sin (x) \cdot - 1 + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $- \cos^{3} (x) \sin (x) \cdot - 1$ .

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Multiplica $- 1$ por $- 1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) + 1 \cos^{3} (x) \sin (x) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\cos^{3} (x)$ por $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) + \cos^{3} (x) \sin (x) + \cos (x) (- \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Reescribe con la propiedad conmutativa de la multiplicación.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos (x) \cos (x) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $- \cos (x) \cos (x)$ .

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Eleva $\cos (x)$ a la potencia de $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) + \cos^{3} (x) \sin (x) - (\cos^{1} (x) \cos (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Eleva $\cos (x)$ a la potencia de $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) + \cos^{3} (x) \sin (x) - (\cos^{1} (x) \cos^{1} (x)) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) + \cos^{3} (x) \sin (x) - {\cos (x)}^{1 + 1} - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $1$ y $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Combina los términos opuestos en $- \sin^{3} (x) \cos (x) + \sin^{2} (x) \cos^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x)$ .

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Reordena los factores en los términos $\sin^{2} (x) \cos^{2} (x)$ y $- \cos^{2} (x) \sin^{2} (x)$ .

$\frac{- \sin^{3} (x) \cos (x) + \cos^{2} (x) \sin^{2} (x) + \sin^{2} (x) - \cos^{2} (x) \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Resta $\cos^{2} (x) \sin^{2} (x)$ de $\cos^{2} (x) \sin^{2} (x)$ .

$\frac{- \sin^{3} (x) \cos (x) + 0 + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $- \sin^{3} (x) \cos (x)$ y $0$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - (1 - \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Aplica la propiedad distributiva.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) + (- 1 \cdot 1 - (- \cos (x) \sin (x))) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $- 1$ por $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) + (- 1 - (- \cos (x) \sin (x))) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $- (- \cos (x) \sin (x))$ .

Toca para ver más pasos...

Multiplica $- 1$ por $- 1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) + (- 1 + 1 (\cos (x) \sin (x))) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\cos (x)$ por $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) + (- 1 + \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Expande $(- 1 + \cos (x) \sin (x)) (1 - 2 \cos^{2} (x))$ con el método PEIU (primero, exterior, interior, ultimo).

Toca para ver más pasos...

Aplica la propiedad distributiva.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 (1 - 2 \cos^{2} (x)) + \cos (x) \sin (x) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Aplica la propiedad distributiva.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 \cdot 1 - 1 (- 2 \cos^{2} (x)) + \cos (x) \sin (x) (1 - 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Aplica la propiedad distributiva.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 \cdot 1 - 1 (- 2 \cos^{2} (x)) + \cos (x) \sin (x) \cdot 1 + \cos (x) \sin (x) (- 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Simplifica cada término.

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Multiplica $- 1$ por $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 - 1 (- 2 \cos^{2} (x)) + \cos (x) \sin (x) \cdot 1 + \cos (x) \sin (x) (- 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $- 2$ por $- 1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 + 2 \cos^{2} (x) + \cos (x) \sin (x) \cdot 1 + \cos (x) \sin (x) (- 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\cos (x)$ por $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 + 2 \cos^{2} (x) + \cos (x) \sin (x) + \cos (x) \sin (x) (- 2 \cos^{2} (x))}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Reescribe con la propiedad conmutativa de la multiplicación.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 + 2 \cos^{2} (x) + \cos (x) \sin (x) - 2 \cos (x) \sin (x) \cos^{2} (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\cos (x)$ por $\cos^{2} (x)$ sumando los exponentes.

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Mueve $\cos^{2} (x)$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 + 2 \cos^{2} (x) + \cos (x) \sin (x) - 2 (\cos^{2} (x) \cos (x)) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $\cos^{2} (x)$ por $\cos (x)$ .

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Eleva $\cos (x)$ a la potencia de $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 + 2 \cos^{2} (x) + \cos (x) \sin (x) - 2 (\cos^{2} (x) \cos^{1} (x)) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 + 2 \cos^{2} (x) + \cos (x) \sin (x) - 2 {\cos (x)}^{2 + 1} \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $2$ y $1$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) + \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 + 2 \cos^{2} (x) + \cos (x) \sin (x) - 2 \cos^{3} (x) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Resta $2 \cos^{3} (x) \sin (x)$ de $\cos^{3} (x) \sin (x)$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) - \cos^{3} (x) \sin (x) - \cos^{2} (x) - 1 + 2 \cos^{2} (x) + \cos (x) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $- \cos^{2} (x)$ y $2 \cos^{2} (x)$ .

$\frac{- \sin^{3} (x) \cos (x) + \sin^{2} (x) - \cos^{3} (x) \sin (x) - 1 + \cos^{2} (x) + \cos (x) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Reescribe $- \sin^{3} (x) \cos (x) + \sin^{2} (x) - \cos^{3} (x) \sin (x) - 1 + \cos^{2} (x) + \cos (x) \sin (x)$ en forma factorizada.

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Reorganiza los términos.

$\frac{- \sin^{3} (x) \cos (x) - \cos^{3} (x) \sin (x) - 1 + \sin^{2} (x) + \cos^{2} (x) + \cos (x) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Aplica la identidad pitagórica.

$\frac{- \sin^{3} (x) \cos (x) - \cos^{3} (x) \sin (x) - 1 + 1 + \cos (x) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $- 1$ y $1$ .

$\frac{- \sin^{3} (x) \cos (x) - \cos^{3} (x) \sin (x) + 0 + \cos (x) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $- \sin^{3} (x) \cos (x)$ y $0$ .

$\frac{- \sin^{3} (x) \cos (x) - \cos^{3} (x) \sin (x) + \cos (x) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Reescribe $- \sin^{3} (x) \cos (x) - \cos^{3} (x) \sin (x) + \cos (x) \sin (x)$ en forma factorizada.

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Factoriza $\sin (x) \cos (x)$ de $- \sin^{3} (x) \cos (x) - \cos^{3} (x) \sin (x) + \cos (x) \sin (x)$ .

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Factoriza $\sin (x) \cos (x)$ de $- \sin^{3} (x) \cos (x)$ .

$\frac{\sin (x) \cos (x) (- \sin^{2} (x)) - \cos^{3} (x) \sin (x) + \cos (x) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Factoriza $\sin (x) \cos (x)$ de $- \cos^{3} (x) \sin (x)$ .

$\frac{\sin (x) \cos (x) (- \sin^{2} (x)) + \sin (x) \cos (x) (- \cos^{2} (x)) + \cos (x) \sin (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Factoriza $\sin (x) \cos (x)$ de $\cos (x) \sin (x)$ .

$\frac{\sin (x) \cos (x) (- \sin^{2} (x)) + \sin (x) \cos (x) (- \cos^{2} (x)) + \sin (x) \cos (x) (1)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Factoriza $\sin (x) \cos (x)$ de $\sin (x) \cos (x) (- \sin^{2} (x)) + \sin (x) \cos (x) (- \cos^{2} (x))$ .

$\frac{\sin (x) \cos (x) (- \sin^{2} (x) - \cos^{2} (x)) + \sin (x) \cos (x) (1)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Factoriza $\sin (x) \cos (x)$ de $\sin (x) \cos (x) (- \sin^{2} (x) - \cos^{2} (x)) + \sin (x) \cos (x) (1)$ .

$\frac{\sin (x) \cos (x) (- \sin^{2} (x) - \cos^{2} (x) + 1)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Factoriza $- 1$ de $- \sin^{2} (x)$ .

$\frac{\sin (x) \cos (x) (- (\sin^{2} (x)) - \cos^{2} (x) + 1)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Factoriza $- 1$ de $- \cos^{2} (x)$ .

$\frac{\sin (x) \cos (x) (- (\sin^{2} (x)) - (\cos^{2} (x)) + 1)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Factoriza $- 1$ de $- (\sin^{2} (x)) - (\cos^{2} (x))$ .

$\frac{\sin (x) \cos (x) (- (\sin^{2} (x) + \cos^{2} (x)) + 1)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Aplica la identidad pitagórica.

$\frac{\sin (x) \cos (x) (- 1 \cdot 1 + 1)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $- 1$ por $1$ .

$\frac{\sin (x) \cos (x) (- 1 + 1)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Suma $- 1$ y $1$ .

$\frac{\sin (x) \cos (x) \cdot 0}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Combina exponentes.

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Multiplica $0$ por $\sin (x)$ .

$\frac{0 \cos (x)}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Multiplica $0$ por $\cos (x)$ .

$\frac{0}{(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))} = 0$

Divide $0$ por $(1 - 2 \cos^{2} (x)) (\sin (x) - \cos (x))$ .

$0 = 0$

Step 3

Como $0 = 0$ , la ecuación siempre será verdadera para cualquier valor de $x$ .

Todos los números reales

Step 4

El resultado puede mostrarse de distintas formas.

Todos los números reales

Notación de intervalo:

$(- \infty, \infty)$