What is the integral of cos(2)(θ) ?

The integral of cos(2)(θ) is 1/2 cos(2)θ^2+C

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integral of cos(2)(θ)

\int cos (2) (θ) d θ

\frac{1}{2} cos (2) θ^{2} + C

Solution steps

\int cos (2) θ d θ

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= cos (2) \cdot \int θ d θ

Apply the Power Rule

: \frac{θ ^{2}}{2}

= cos (2) \frac{θ ^{2}}{2}

Simplify

cos (2) \frac{θ ^{2}}{2} : \frac{1}{2} cos (2) θ^{2}

= \frac{1}{2} cos (2) θ^{2}

Add a constant to the solution

= \frac{1}{2} cos (2) θ^{2} + C

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What is the integral of cos(2)(θ) ?
The integral of cos(2)(θ) is 1/2 cos(2)θ^2+C