What is the integral of 3(sin(2x))/(sin(x)) ?

The integral of 3(sin(2x))/(sin(x)) is 6sin(x)+C

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integral of 3(sin(2x))/(sin(x))

\int 3 \frac{sin ( 2 x )}{sin ( x )} d x

6 sin (x) + C

Solution steps

\int 3 \cdot \frac{sin ( 2 x )}{sin ( x )} d x

Take the constant out:

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

= 3 \cdot \int \frac{sin ( 2 x )}{sin ( x )} d x

Rewrite using trig identities

= 3 \cdot \int 2 cos (x) d x

Take the constant out:

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

= 3 \cdot 2 \cdot \int cos (x) d x

Use the common integral:

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

= 3 \cdot 2 sin (x)

Simplify

= 6 sin (x)

Add a constant to the solution

= 6 sin (x) + C

(- 5, - 2), (5, 14)

x \to - \frac{1}{4} lim (2)

x \to a lim ([2 f (3) - 3 g (4)])

y^{'} (t)

\int \frac{3}{2 x + 1} d x

What is the integral of 3(sin(2x))/(sin(x)) ?
The integral of 3(sin(2x))/(sin(x)) is 6sin(x)+C