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

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

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

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

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

- 14 cos (7 x) sin (7 x)

Solution steps

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

Apply the chain rule:

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

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

\frac{d}{d x} (cos (7 x)) = - sin (7 x) \cdot 7

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

Simplify

= - 14 cos (7 x) sin (7 x)

(y + 4) y^{^{'}} = y (2 x + 4)

l o n g d i v i s i o n \frac{3 x - 1}{2 x + 1}

t an g e n t x (1.1)

\frac{\partial}{\partial x} (2 x - 3 y)

\int \frac{4}{6 + 4 x} d x

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