Write the complex number in trigonometric form r(cos ? + i sin ?), where r is exact and -? < ? ? ?.-4
+ 4i
A. 4 
B. 8 
C. 8 
D. 4 
Answer: C
You might also like to view...
Factor.x6 + 16x2
A. x4(x2 + 16) B. x2(x4 + 16x) C. 16x2(x4 + 1) D. x2(x4 + 16)
Compute the difference. Express answer in simplest form.
- 
A. 
B. 
C. 
D. 
Solve the problem.A tightrope walker located at a certain point deflects the rope as indicated in the figure. If the weight of the tightrope walker is 100 pounds, how much tension is in each part of the rope? Round your answers to the nearest tenth. 
A. tension in the left part: -172.3 lb; tension in the right part: 144.5 lb B. tension in the left part: -184.9 lb; tension in the right part: -159.8 lb C. tension in the left part: -195.8 lb; tension in the right part: 164.3 lb D. tension in the left part: -213.3 lb; tension in the right part: -184.2 lb
Find f(x) and g(x) such that h(x) = (f ? g)(x). Answers may vary.h(x) = 
A. f(x) = 
, g(x) = 
B. f(x) = 
, g(x) = -78x2 + 35
C. f(x) = -78x2 + 35, g(x) = 
D. f(x) = 
, g(x) = x