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<xp+px> 2. The attempt at a solution Honestly, I don't even know where to begin. I assumed V<0, V>L is V=∞ and 0<V<L is V=0 I tried setting up the expectation value formula 1/2∫x|ψ*Pψ|2+(x|ψ2)*P x|ψ|2 but what is ψ? is it √(2/L) Sin ((n2πx)/L) because its the solution to the infinite well? are the bounds from 0 to L? Thanks for viewing my question!