Trigonometría Ejemplos

$\frac{\sin (x) + \sin (y)}{\cos (x) - \cos (y)} = \cot (x)$

Step 1

Resta $\cot (x)$ de ambos lados de la ecuación.

$\frac{\sin (x) + \sin (y)}{\cos (x) - \cos (y)} - \cot (x) = 0$

Step 2

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

$\frac{\sin (x) + \sin (y)}{\cos (x) - \cos (y)} - \frac{\cos (x)}{\sin (x)} = 0$

Step 3

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

$\frac{\sin (x) + \sin (y)}{\cos (x) - \cos (y)} \cdot \frac{\sin (x)}{\sin (x)} - \frac{\cos (x)}{\sin (x)} = 0$

Step 4

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

$\frac{\sin (x) + \sin (y)}{\cos (x) - \cos (y)} \cdot \frac{\sin (x)}{\sin (x)} - \frac{\cos (x)}{\sin (x)} \cdot \frac{\cos (x) - \cos (y)}{\cos (x) - \cos (y)} = 0$

Step 5

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

Toca para ver más pasos...

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

$\frac{(\sin (x) + \sin (y)) \sin (x)}{(\cos (x) - \cos (y)) \sin (x)} - \frac{\cos (x)}{\sin (x)} \cdot \frac{\cos (x) - \cos (y)}{\cos (x) - \cos (y)} = 0$

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

$\frac{(\sin (x) + \sin (y)) \sin (x)}{(\cos (x) - \cos (y)) \sin (x)} - \frac{\cos (x) (\cos (x) - \cos (y))}{\sin (x) (\cos (x) - \cos (y))} = 0$

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

$\frac{(\sin (x) + \sin (y)) \sin (x)}{\sin (x) (\cos (x) - \cos (y))} - \frac{\cos (x) (\cos (x) - \cos (y))}{\sin (x) (\cos (x) - \cos (y))} = 0$

Step 6

Combina los numeradores sobre el denominador común.

$\frac{(\sin (x) + \sin (y)) \sin (x) - \cos (x) (\cos (x) - \cos (y))}{\sin (x) (\cos (x) - \cos (y))} = 0$

Step 7

Simplifica el numerador.

Toca para ver más pasos...

Aplica la propiedad distributiva.

$\frac{\sin (x) \sin (x) + \sin (y) \sin (x) - \cos (x) (\cos (x) - \cos (y))}{\sin (x) (\cos (x) - \cos (y))} = 0$

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

Toca para ver más pasos...

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

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

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

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

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

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

Suma $1$ y $1$ .

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

Aplica la propiedad distributiva.

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

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

Toca para ver más pasos...

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

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

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

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

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

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

Suma $1$ y $1$ .

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

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

Toca para ver más pasos...

Multiplica $- 1$ por $- 1$ .

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

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

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