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

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

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

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

Solution steps

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

Apply Integration By Parts

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

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

Take the constant out:

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

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

Apply Integration By Parts

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

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

Take the constant out:

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

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

Therefore

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

Isolate

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

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

Add a constant to the solution

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

\frac{d y}{d t} = k y^{2}

\int_{0}^{64} \frac{3}{x ^{\frac{2}{3}}} d x

x \to - 1 lim (- x + 2)

y^{^{''}} - 2 y^{^{'}} + 5 y = 2 sin (t), y (0) = 0, y^{^{'}} (0) = 1

\int e^{i t x} d x

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