- #1

fonseh

- 529

- 2

## Homework Statement

I have calculate my double integral using wolfram alpha , but i get the ans = 312.5 , but according to the book , the ans is = 0 , which part of my working is wrong

## Homework Equations

## The Attempt at a Solution

Or is it z =0 , ? i have tried z = 0 , but still didnt get the ans = 0 , Which part is wrong?[/B]