What is the integral of sin(3x+7) ?

The integral of sin(3x+7) is -1/3 cos(3x+7)+C

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integral of sin(3x+7)

\int sin (3 x + 7) d x

- \frac{1}{3} cos (3 x + 7) + C

Solution steps

\int sin (3 x + 7) d x

Apply u-substitution

: \int sin (u) \frac{1}{3} d u

= \int sin (u) \frac{1}{3} d u

Take the constant out:

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

= \frac{1}{3} \cdot \int sin (u) d u

Use the common integral:

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

= \frac{1}{3} (- cos (u))

Substitute back

u = 3 x + 7

= \frac{1}{3} (- cos (3 x + 7))

Simplify

= - \frac{1}{3} cos (3 x + 7)

Add a constant to the solution

= - \frac{1}{3} cos (3 x + 7) + C

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\int \frac{7}{x + 5} d x

What is the integral of sin(3x+7) ?
The integral of sin(3x+7) is -1/3 cos(3x+7)+C