What is secondderivative of f(x)=cos(2x) ?

The answer to secondderivative of f(x)=cos(2x) is -4cos(2x)

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Find the 2nd Derivative f(x)=cos(2x)

second derivative

f (x) = cos (2 x)

- 4 cos (2 x)

Solution steps

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

\frac{d}{d x} (cos (2 x)) = - sin (2 x) \cdot 2

= \frac{d}{d x} (- sin (2 x) \cdot 2)

\frac{d}{d x} (- sin (2 x) \cdot 2) = - 4 cos (2 x)

= - 4 cos (2 x)

- \frac{d}{d} y - 2 y

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

- \frac{d}{d x} (sin (3 x))

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

- \frac{d}{d x} (\frac{1}{( 2 x )})

What is secondderivative of f(x)=cos(2x) ?
The answer to secondderivative of f(x)=cos(2x) is -4cos(2x)