please solve this question

15. Jo =2 - 2z 2# + 3 da; (a) = = 1, (b) |= + 1| =2 (c) |z - 3| = 2, (d) |z + 2i| = 1 16. 2 Jo (2 - 1) (2 - 2) dz; (a) |2| = }, (b) |= + 1/ =1 (c) |z - 1/ = }, (d) |=| =4 17. 2 +2 Jo z2(2 -1 -1) da; (a) |z| = 1, (b) |z -1-i| =1 18. 1 Jo 23(2-4) da; (a) |z) = 1, (b) |z - 2| = 1 eliz 19. Jo 24 (2 - 1)3 dz; |=) = 6 20. cosh z sin 2 Jo ( 2 - 7 ) 3 (22 - 7) 3 dz; |z| = 3 21. 1 Jo 23(2-1)2 2 da; |2 - 21 = 5 22. Jo 2 2(22 + 1 ) In Problems 23 and 24, evaluate the given integral, where C is the figure-eight contour in the figure. 23. 32 +1 eiz Je z(z - 2)2 da 24. Po ($ 2 + 1) 2 dz 0 Figure 5.46 Figure for Problem 23 Figure 5.47 Figure for Problem 24