What is the integral of ((cos(2x)))/2 ?

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

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Find the Antiderivative (cos(2x))/2

integral

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

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

Solution steps

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

Apply u-substitution

: \int cos (u) \frac{1}{2} d u

= \frac{1}{2} \cdot \int cos (u) \frac{1}{2} d u

Take the constant out:

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

= \frac{1}{2} \cdot \frac{1}{2} \cdot \int cos (u) d u

Use the common integral:

\int cos (u) d u = sin (u)

= \frac{1}{2} \cdot \frac{1}{2} sin (u)

Substitute back

u = 2 x

= \frac{1}{2} \cdot \frac{1}{2} sin (2 x)

Simplify

\frac{1}{2} \cdot \frac{1}{2} sin (2 x) : \frac{1}{4} sin (2 x)

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

Add a constant to the solution

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

(- 4, 4), (4, 4)

- \frac{d}{d x} (\frac{x}{5})

e^{3 x}

- \frac{d}{d x} y = sin (\frac{1}{x})

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

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