- #1

- 53

- 0

## Homework Statement

∫xe^(-2x)dx from x = 0 to ∞

## Homework Equations

-xe^(-2x)/2 - e^(-2x)/4 + C

## The Attempt at a Solution

lim b→∞ -x/2e^(2b) - 1/4e^(2b) = 0

wolfram alpha says its 1/4 and I do not know why (it does not show steps)

Can you help me?