# Proof of the derivative of delta function

1. Oct 4, 2009

### rocky3321

The problem is to prove that δ'(ax) = (1/a)*(1/a)*δ'(x), where a is a constant. I tried applying the scaling theorem with the formal definition of δ'(x) but I can not get the second (1/a) term. Does anyone have some insight on this problem? Thank you...

2. Oct 4, 2009

### rocky3321

I was able to figure it out, so you do not have to reply to this thread.