Calculus Examples

$\int x \cdot e^{x} d x$

Step 1

Integrate by parts using the formula $\int u d v = u v - \int v d u$ , where $u = x$ and $d v = e^{x}$ .

$x e^{x} - \int e^{x} d x$

Step 2

The integral of $e^{x}$ with respect to $x$ is $e^{x}$ .

$x e^{x} - (e^{x} + C)$

Step 3

Simplify.

$x e^{x} - e^{x} + C$