1549312215-Complex_Analysis_for_Mathematics_and_Engineering_5th_edition__Mathews

290 CHAPTER 7 • TAYLOR AND LAURENT SERIES

6. Use L'Hopital's rule to find the following limits.

(a) z-1+i lim ~-z +4

(b) I. x

(^2) -2ie- J
%-'I.. nn_ ·•+2 .;::^2 +1 ·
(c) z - i lim l±•;l+.i:.
(d) $-o lim sln zts$ i s h z-2::.