- #1

- 435

- 13

## Homework Statement

[itex]\int_{-\infty}^{+\infty} e^{-\left|x\right|} \,dx[/itex]

## The Attempt at a Solution

So I know you are supposed to split this integral up into two different ones, from (b to 0) and (0 to a) where b is approaching - infinity, and a is approaching +infinity, but how would I take that antiderivative? Since the absolute value has a piecewise derivative.