Finding the value of an expression with square roots and fractions

[isolet]

Sorry for other problem but very important for my lesson.

http://a1112.hizliresim.com/s/7/yv46.jpg

 

[HallsofIvy]

No, "$C_R$" is not a "a zero", it is part of your contour. Perhaps you meant that i is a zero of the denominator and so is a pole, of order p, of the integrand. There is a general formula for the residue at a pole.