Exercise 15. Let f(z) cos z (z2-1)2 The residue off(z) at zo = 1 is a) – sin 1 b) sin1cos 1 c) -(sin 1 + cos 1) cos 1 d) O a. O b. c. d.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 54E
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Exercise 15.
cosz
Let f(z)
The residue of f (z) at zo = 1 is
(z2-1)2
a) – sin 1
b) sin1cos 1
c) -(sin 1 + cos 1)
cos 1
d)
а.
b.
С.
O d.
Transcribed Image Text:Exercise 15. cosz Let f(z) The residue of f (z) at zo = 1 is (z2-1)2 a) – sin 1 b) sin1cos 1 c) -(sin 1 + cos 1) cos 1 d) а. b. С. O d.
Exercise 16.
Let f(z)
cos z
(z2-1)2
The residue of f(z) at zo = -1
%3D
a) – sin 1
b) -cos1
c) sinl
d) None of the above
а.
b.
с.
d.
K
Transcribed Image Text:Exercise 16. Let f(z) cos z (z2-1)2 The residue of f(z) at zo = -1 %3D a) – sin 1 b) -cos1 c) sinl d) None of the above а. b. с. d. K
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