Plz find attached the word file. Can anyone help me in finding how can I get the equation 4 i.e. solution by using equations 1,2 and 3 ?
Very well, then. It looks like a straight-forward integration problem, then. You've got to plug things into things, and then plug those into things. So, for example, you have
Taken together, you've got
All I've done so far is plug into the expression for right?
Now, this is a doable integral as is. Do you know how to integrate Gaussian integrals?