What is the integral of 5sin(ln(x)) ?

The integral of 5sin(ln(x)) is 5(1/2 xsin(ln(x))-1/2 xcos(ln(x)))+C

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

integral of 5sin(ln(x))

\int 5 sin (ln (x)) d x

5 (\frac{1}{2} x sin (ln (x)) - \frac{1}{2} x cos (ln (x))) + C

Solution steps

\int 5 sin (ln (x)) d x

Take the constant out:

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

= 5 \cdot \int sin (ln (x)) d x

Apply Integration By Parts

= 5 (x sin (ln (x)) - \int cos (ln (x)) d x)

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

= 5 (x sin (ln (x)) - (\frac{1}{2} x sin (ln (x)) + \frac{1}{2} x cos (ln (x))))

Expand

x sin (ln (x)) - (\frac{1}{2} x sin (ln (x)) + \frac{1}{2} x cos (ln (x))) : \frac{1}{2} x sin (ln (x)) - \frac{1}{2} x cos (ln (x))

= 5 (\frac{1}{2} x sin (ln (x)) - \frac{1}{2} x cos (ln (x)))

Add a constant to the solution

= 5 (\frac{1}{2} x sin (ln (x)) - \frac{1}{2} x cos (ln (x))) + C

What is the integral of 5sin(ln(x)) ?
The integral of 5sin(ln(x)) is 5(1/2 xsin(ln(x))-1/2 xcos(ln(x)))+C