What is the derivative of 7cos^2(x) ?

The derivative of 7cos^2(x) is -14cos(x)sin(x)

What is the first derivative of 7cos^2(x) ?

The first derivative of 7cos^2(x) is -14cos(x)sin(x)

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\frac{d}{d x} (7 cos^{2} (x))

- 14 cos (x) sin (x)

Solution steps

\frac{d}{d x} (7 cos^{2} (x))

Take the constant out:

(a \cdot f)^{'} = a \cdot f^{'}

= 7 \frac{d}{d x} (cos^{2} (x))

Apply the chain rule:

2 cos (x) \frac{d}{d x} (cos (x))

= 2 cos (x) \frac{d}{d x} (cos (x))

\frac{d}{d x} (cos (x)) = - sin (x)

= 7 \cdot 2 cos (x) (- sin (x))

Simplify

= - 14 cos (x) sin (x)

f^{^{''}} (x) = 2, f^{^{'}} (2) = 5, f (2) = 10

\frac{d}{d θ} (cos (2 θ) + i sin (2 θ))

\frac{d}{d x} ((3 x - x^{2}) (3 - x - x^{2}))

\int \frac{x ^{2} + 84 x + 84}{x ^{3} - 4 x} d x

\frac{\partial}{\partial x} (3 x^{4} + 5 x^{4} + 9 x y)

What is the derivative of 7cos^2(x) ?
The derivative of 7cos^2(x) is -14cos(x)sin(x)
What is the first derivative of 7cos^2(x) ?
The first derivative of 7cos^2(x) is -14cos(x)sin(x)