- #1

- 423

- 2

## Homework Statement

See http://mathworld.wolfram.com/DeltaFunction.html

I want to show (6) on that page. I can show it using (7), but we aren't supposed to do that. I already proved (5), and my prof says to use the fact that (5) is true to get the answer.

## Homework Equations

## The Attempt at a Solution

Here's what I tried:

δ(x

^{2}- a

^{2}) = δ((x-a)(x+a))

I'm not sure how to use (5), because here a is not multiplying x. I'm not sure where to go from here.