Precálculo Ejemplos

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

Paso 1

Separa la negación.

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

Paso 2

Aplica la diferencia de la razón de los ángulos.

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

Paso 3

Simplifica cada término.

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Paso 3.1

Evalúa $\cos (1)$ .

$\cos (x) - {(\sin (x) \cdot 0.5403023 - \cos (x) \sin (1))}^{2}$

Paso 3.2

Mueve $0.5403023$ a la izquierda de $\sin (x)$ .

$\cos (x) - {(0.5403023 \cdot \sin (x) - \cos (x) \sin (1))}^{2}$

Paso 3.3

Evalúa $\sin (1)$ .

$\cos (x) - {(0.5403023 \sin (x) - \cos (x) \cdot 0.84147098)}^{2}$

Paso 3.4

Multiplica $0.84147098$ por $- 1$ .

$\cos (x) - {(0.5403023 \sin (x) - 0.84147098 \cos (x))}^{2}$

Paso 4

Reescribe ${(0.5403023 \sin (x) - 0.84147098 \cos (x))}^{2}$ como $(0.5403023 \sin (x) - 0.84147098 \cos (x)) (0.5403023 \sin (x) - 0.84147098 \cos (x))$ .

$\cos (x) - ((0.5403023 \sin (x) - 0.84147098 \cos (x)) (0.5403023 \sin (x) - 0.84147098 \cos (x)))$

Paso 5

Expande $(0.5403023 \sin (x) - 0.84147098 \cos (x)) (0.5403023 \sin (x) - 0.84147098 \cos (x))$ con el método PEIU (primero, exterior, interior, ultimo).

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Paso 5.1

Aplica la propiedad distributiva.

$\cos (x) - (0.5403023 \sin (x) (0.5403023 \sin (x) - 0.84147098 \cos (x)) - 0.84147098 \cos (x) (0.5403023 \sin (x) - 0.84147098 \cos (x)))$

Paso 5.2

Aplica la propiedad distributiva.

$\cos (x) - (0.5403023 \sin (x) (0.5403023 \sin (x)) + 0.5403023 \sin (x) (- 0.84147098 \cos (x)) - 0.84147098 \cos (x) (0.5403023 \sin (x) - 0.84147098 \cos (x)))$

Paso 5.3

Aplica la propiedad distributiva.

$\cos (x) - (0.5403023 \sin (x) (0.5403023 \sin (x)) + 0.5403023 \sin (x) (- 0.84147098 \cos (x)) - 0.84147098 \cos (x) (0.5403023 \sin (x)) - 0.84147098 \cos (x) (- 0.84147098 \cos (x)))$

Paso 6

Simplifica y combina los términos similares.

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Paso 6.1

Simplifica cada término.

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Paso 6.1.1

Multiplica $0.5403023 \sin (x) (0.5403023 \sin (x))$ .

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Paso 6.1.1.1

Multiplica $0.5403023$ por $0.5403023$ .

$\cos (x) - (0.29192658 \sin (x) \sin (x) + 0.5403023 \sin (x) (- 0.84147098 \cos (x)) - 0.84147098 \cos (x) (0.5403023 \sin (x)) - 0.84147098 \cos (x) (- 0.84147098 \cos (x)))$

Paso 6.1.1.2

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

$\cos (x) - (0.29192658 (\sin^{1} (x) \sin (x)) + 0.5403023 \sin (x) (- 0.84147098 \cos (x)) - 0.84147098 \cos (x) (0.5403023 \sin (x)) - 0.84147098 \cos (x) (- 0.84147098 \cos (x)))$

Paso 6.1.1.3

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

$\cos (x) - (0.29192658 (\sin^{1} (x) \sin^{1} (x)) + 0.5403023 \sin (x) (- 0.84147098 \cos (x)) - 0.84147098 \cos (x) (0.5403023 \sin (x)) - 0.84147098 \cos (x) (- 0.84147098 \cos (x)))$

Paso 6.1.1.4

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

$\cos (x) - (0.29192658 {\sin (x)}^{1 + 1} + 0.5403023 \sin (x) (- 0.84147098 \cos (x)) - 0.84147098 \cos (x) (0.5403023 \sin (x)) - 0.84147098 \cos (x) (- 0.84147098 \cos (x)))$

Paso 6.1.1.5

Suma $1$ y $1$ .

$\cos (x) - (0.29192658 \sin^{2} (x) + 0.5403023 \sin (x) (- 0.84147098 \cos (x)) - 0.84147098 \cos (x) (0.5403023 \sin (x)) - 0.84147098 \cos (x) (- 0.84147098 \cos (x)))$

Paso 6.1.2

Multiplica $- 0.84147098$ por $0.5403023$ .

$\cos (x) - (0.29192658 \sin^{2} (x) - 0.45464871 \sin (x) \cos (x) - 0.84147098 \cos (x) (0.5403023 \sin (x)) - 0.84147098 \cos (x) (- 0.84147098 \cos (x)))$

Paso 6.1.3

Multiplica $0.5403023$ por $- 0.84147098$ .

$\cos (x) - (0.29192658 \sin^{2} (x) - 0.45464871 \sin (x) \cos (x) - 0.45464871 \cos (x) \sin (x) - 0.84147098 \cos (x) (- 0.84147098 \cos (x)))$

Paso 6.1.4

Multiplica $- 0.84147098 \cos (x) (- 0.84147098 \cos (x))$ .

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Paso 6.1.4.1

Multiplica $- 0.84147098$ por $- 0.84147098$ .

$\cos (x) - (0.29192658 \sin^{2} (x) - 0.45464871 \sin (x) \cos (x) - 0.45464871 \cos (x) \sin (x) + 0.70807341 \cos (x) \cos (x))$

Paso 6.1.4.2

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

$\cos (x) - (0.29192658 \sin^{2} (x) - 0.45464871 \sin (x) \cos (x) - 0.45464871 \cos (x) \sin (x) + 0.70807341 (\cos^{1} (x) \cos (x)))$

Paso 6.1.4.3

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

$\cos (x) - (0.29192658 \sin^{2} (x) - 0.45464871 \sin (x) \cos (x) - 0.45464871 \cos (x) \sin (x) + 0.70807341 (\cos^{1} (x) \cos^{1} (x)))$

Paso 6.1.4.4

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

$\cos (x) - (0.29192658 \sin^{2} (x) - 0.45464871 \sin (x) \cos (x) - 0.45464871 \cos (x) \sin (x) + 0.70807341 {\cos (x)}^{1 + 1})$

Paso 6.1.4.5

Suma $1$ y $1$ .

$\cos (x) - (0.29192658 \sin^{2} (x) - 0.45464871 \sin (x) \cos (x) - 0.45464871 \cos (x) \sin (x) + 0.70807341 \cos^{2} (x))$

Paso 6.2

Reordena los factores de $- 0.45464871 \sin (x) \cos (x)$ .

$\cos (x) - (0.29192658 \sin^{2} (x) - 0.45464871 \cos (x) \sin (x) - 0.45464871 \cos (x) \sin (x) + 0.70807341 \cos^{2} (x))$

Paso 6.3

Resta $0.45464871 \cos (x) \sin (x)$ de $- 0.45464871 \cos (x) \sin (x)$ .

$\cos (x) - (0.29192658 \sin^{2} (x) - 0.90929742 \cos (x) \sin (x) + 0.70807341 \cos^{2} (x))$

Paso 7

Aplica la propiedad distributiva.

$\cos (x) - (0.29192658 \sin^{2} (x)) - (- 0.90929742 \cos (x) \sin (x)) - (0.70807341 \cos^{2} (x))$

Paso 8

Simplifica.

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Paso 8.1

Multiplica $0.29192658$ por $- 1$ .

$\cos (x) - 0.29192658 \sin^{2} (x) - (- 0.90929742 \cos (x) \sin (x)) - (0.70807341 \cos^{2} (x))$

Paso 8.2

Multiplica $- 0.90929742$ por $- 1$ .

$\cos (x) - 0.29192658 \sin^{2} (x) + 0.90929742 (\cos (x) \sin (x)) - (0.70807341 \cos^{2} (x))$

Paso 8.3

Multiplica $0.70807341$ por $- 1$ .

$\cos (x) - 0.29192658 \sin^{2} (x) + 0.90929742 (\cos (x) \sin (x)) - 0.70807341 \cos^{2} (x)$

$\cos (x) - 0.29192658 \sin^{2} (x) + 0.90929742 \cos (x) \sin (x) - 0.70807341 \cos^{2} (x)$