-27 3 -27 (a) CoS +i sin 9 r = ,0 = 6+ 6i (b) /3+i r = = A 2i (c) 3e(2+i) 0 =

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Question

Write each of the given numbers in the polar form correctly from a) to c) 

 

re", -n < 0 < T.
Transcribed Image Text:re", -n < 0 < T.
-27
3
-27
(a)
CoS
+i sin
9
r =
,0 =
6+ 6i
(b)
/3+i
r =
= A
2i
(c)
3e(2+i)
0 =
Transcribed Image Text:-27 3 -27 (a) CoS +i sin 9 r = ,0 = 6+ 6i (b) /3+i r = = A 2i (c) 3e(2+i) 0 =
Expert Solution
Step 1

a)  It is given that

cos-2π9+isin-2π93

=cos-2π9×3+isin-2π9×3

=cos-2π3+isin-2π3

=cos-2π3+2π+isin-2π3+2π

= cos4π3+isin4π3

=1.ei-4π3

 

 

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