What is the integral of e^{2x}(sin(3x)) ?

The integral of e^{2x}(sin(3x)) is -(3e^{2x}cos(3x))/(13)+(2e^{2x}sin(3x))/(13)+C

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

integral of e^{2x}(sin(3x))

\int e^{2 x} (sin (3 x)) d x

- \frac{3 e ^{2 x} cos ( 3 x )}{13} + \frac{2 e ^{2 x} sin ( 3 x )}{13} + C

Solution steps

\int e^{2 x} sin (3 x) d x

Apply Integration By Parts

: - \frac{1}{3} e^{2 x} cos (3 x) - \int - \frac{2}{3} e^{2 x} cos (3 x) d x

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

Take the constant out:

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

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

Apply Integration By Parts

: \frac{1}{3} e^{2 x} sin (3 x) - \int \frac{2}{3} e^{2 x} sin (3 x) d x

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

Take the constant out:

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

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

Therefore

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

Isolate

\int e^{2 x} sin (3 x) d x

= - \frac{3 e ^{2 x} cos ( 3 x )}{13} + \frac{2 e ^{2 x} sin ( 3 x )}{13}

Add a constant to the solution

= - \frac{3 e ^{2 x} cos ( 3 x )}{13} + \frac{2 e ^{2 x} sin ( 3 x )}{13} + C

\int 4 x^{2} + 7 x - 4 d x

f (x) = e^{x} - x^{8}

f (x) = 4 x + x^{2}, at x = 0

\int_{2}^{5} π (ln (7 x))^{2} d x

\frac{d}{d a} (5 a^{9} b^{3} + 15 a^{6} b^{7})

What is the integral of e^{2x}(sin(3x)) ?
The integral of e^{2x}(sin(3x)) is -(3e^{2x}cos(3x))/(13)+(2e^{2x}sin(3x))/(13)+C