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Popular >

(d^2)/(dx^2)(cos(-2x))

Solution

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

Solution

- 4 cos (2 x)

Solution steps

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

Simplify

cos (- 2 x) : cos (2 x)

= \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)

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Frequently Asked Questions (FAQ)

What is (d^2)/(dx^2)(cos(-2x)) ?
The answer to (d^2)/(dx^2)(cos(-2x)) is -4cos(2x)