The momentum operator is -i*hbar*d/dx for systems in one dimension, where d/dx stands for the first derivative. Find the expectation value (average momentum)
, for the particle in a box. For full credit on this question, you will need to show each step (even though you can use wolfram alpha to solve parts of this, you cannot simply type in the entire expression and get an answer) and what wolfram alpha gives you for each step. This problem is solved in many places on-line, but again, I need to see each step in this process so that I know you understand what you are doing.