What is the integral of sqrt(1+sin(x))*cos(x) ?

The integral of sqrt(1+sin(x))*cos(x) is sin(x)sqrt(1+sin(x))-1/3 (1+sin(x))^{3/2}+sqrt(1+sin(x))+C

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

integral of sqrt(1+sin(x))*cos(x)

\int 1 + sin (x) \cdot cos (x) d x

sin (x) 1 + sin (x) - \frac{1}{3} (1 + sin (x))^{\frac{3}{2}} + 1 + sin (x) + C

Solution steps

\int 1 + sin (x) cos (x) d x

Apply Integration By Parts

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

\int \frac{cos ( x ) sin ( x )}{2 1 + sin ( x )} d x = \frac{1}{3} (1 + sin (x))^{\frac{3}{2}} - 1 + sin (x)

= sin (x) 1 + sin (x) - (\frac{1}{3} (1 + sin (x))^{\frac{3}{2}} - 1 + sin (x))

Simplify

= sin (x) 1 + sin (x) - \frac{1}{3} (1 + sin (x))^{\frac{3}{2}} + 1 + sin (x)

Add a constant to the solution

= sin (x) 1 + sin (x) - \frac{1}{3} (1 + sin (x))^{\frac{3}{2}} + 1 + sin (x) + C

What is the integral of sqrt(1+sin(x))*cos(x) ?
The integral of sqrt(1+sin(x))*cos(x) is sin(x)sqrt(1+sin(x))-1/3 (1+sin(x))^{3/2}+sqrt(1+sin(x))+C