SOLVED(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

evaluate the intergral

2. Relevant equations

sorry about how this is going to look don't know the language to display nicely and wouldn't take my copy and paste

all integrals are form -infinity to infinity

(x^2+32*z^2)*cos(y)*e^(x-4*z) delta(x-1) delta (y-pi) delta(z-.25) dx, dy dz

3. The attempt at a solution

well i looked at just the cos(y) part and got sin(y) then for the delta i plugged in pi since it is zero elsewhere and that gives me a 0 overall and since it is all mulitplication that makes the whole integral o?

thats my take.

never really understood teh delta's in integrals

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# A triple integral involving deltas

**Physics Forums | Science Articles, Homework Help, Discussion**