What is the integral of sin^2(2x) ?

The integral of sin^2(2x) is 1/2 (x-1/4 sin(4x))+C

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integral of sin^2(2x)

\int sin^{2} (2 x) d x

\frac{1}{2} (x - \frac{1}{4} sin (4 x)) + C

Solution steps

\int sin^{2} (2 x) d x

Rewrite using trig identities

= \int \frac{1}{2} (1 - cos (4 x)) d x

Take the constant out:

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

= \frac{1}{2} \cdot \int 1 - cos (4 x) d x

Apply the Sum Rule:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \frac{1}{2} (\int 1 d x - \int cos (4 x) d x)

\int 1 d x = x

\int cos (4 x) d x = \frac{1}{4} sin (4 x)

= \frac{1}{2} (x - \frac{1}{4} sin (4 x))

Add a constant to the solution

= \frac{1}{2} (x - \frac{1}{4} sin (4 x)) + C

\int \frac{1}{9 x ^{2} - 49} d x

\frac{d}{d x} ((x^{2} - 1)^{3})

\frac{1}{t ^{2} - 1}

\int \frac{7 x - 1}{x ^{2} - 1} d x

f (x) = 4 x + 1

What is the integral of sin^2(2x) ?
The integral of sin^2(2x) is 1/2 (x-1/4 sin(4x))+C