1. The problem statement, all variables and given/known data A particle in an infinite box is in the first excited state (n=2). Obtain the expectation value (1/2)*<x*p+p*x> 2. Relevant equations 3. The attempt at a solution I'm completely baffled by this problem. Can anyone just please point me in the right direction and then ill respond with what i get (because i know im gonna get stuck again) Thanks!