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Popular >

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

Solution

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

Solution

- cos (2 x) \cdot 2

Solution steps

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

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

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

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

= - cos (2 x) \cdot 2

Popular Examples

integral of e^{2y}-ycos(xy)

\int e^{2 y} - y cos (x y) d x

derivative of 4.9x^2

\frac{d}{d x} (4.9 x^{2})

(\partial}{\partial x}(ln(\frac{x-2)/3))

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

limit as x approaches 7 of (x-7)/(|x-7|)

x \to 7 lim (\frac{x - 7}{∣ x - 7 ∣})

limit as x approaches 0 of x^2+3x+1

x \to 0 lim (x^{2} + 3 x + 1)

Frequently Asked Questions (FAQ)

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