1. The problem statement, all variables and given/known data A particle is in a state described by a wave function of the form ψ(r) = (x+y+z)f(r). What are the values that a measurement of L2 can yield? What is probability for all these results? 2. Relevant equations 3. The attempt at a solution I feel this problem shouldn't be too hard but I've been struggling with quantum since last semester so any guidance would be nice. I think i should probably write the function in spherical terms to start off with. but I'm not too clear on where to go from there. I also know that i need to use Ylm too but again, I'm pretty confused.