3 Prove the Ehrenfest theorem For this question, use the formula for the time derivative of an expectation value derived in class with the following Hamiltonian: H=2mp^x2+V(x) 1. Show the first statement of the Ehrenfest theorem: dtdx=mpx 2. Show the second statement of the Ehrenfest theorem: dtdpx=dxdV(x) 3. Combine these two statements to come up with the quantum version of one of Newton's equations. Hint: in classical physics, the force acting on a particle is F=dxdV(x). 4. What is different about the Ehrenfest theorem than the classical version