Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
Integrate[(cos(x) cos(y))/(1-sin^2(x) sin^2(y))^(3/2),x,y]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random