AF. 11 Find the poles in the functions below, and determine their orders. For each order of pole, enter "NONE" if there aren't any, enter the location of the pole if there is only one, and enter a list of poles as ($1, #2. #3. . .) if there is more than one. a. 22 - 2+ +1 The simple poles are at The poles of order 2 are at - - X The poles of 3rd or higher order are at = = X b. =? - 2: - 1 The simple poles are at = = X The poles of order 2 are at X The poles of 3rd or higher order are at b X e(z-1) - 1 c. (: 2 + 1) (= - 1) (2-1) The simple poles are at = (z + 2 ) (2 - 2) (2 -1) X The poles of order 2 are at = = X The poles of 3rd or higher order are at = = X