1. The problem statement, all variables and given/known data I'm so confused about the question below,actually i cannot understand the problem at all.Could anybody help me out?Thank you 2. Relevant equations Find the operator for position x if the operator for momentum p is taken to be (h/2m)½（A+B),with[A,B]=1,and all other commutators zero. 3. The attempt at a solution i just cannot figure it out how can the position,which is a opeartor itself,can have a operator for.