Calculate the second-order correction to the energy for the system described in problem 6.7 and calculate the ground-state wavefunction. account for the shape of the distortion caused by the perturbation. hint. use eqn 6.30 for the energy and eqn 6.27 for the wavefunction. the integrals involved are of the form cos ax sin bx dx da *sin ax sin bx dx = cos (a + b)x 2(a+b) cos ax sin bx dxcos(a-b)x 2(a-b) evaluate the sum over n numerically.