Hey guys.

http://img39.imageshack.us/img39/2345/27760913.jpg

I need to show that these wave functions are orthonormal.

I'm a bit confuse, what's i and what's j?

I mean, do I need to take both of the functions, put them in the integral and to show that the result is the Kronecker delta?

Can I neglect the exponent for this?

Thanks a lot.