Find the indicated roots and express them in rectangular form.Square roots of -1 + 
i
A. 
+ 
i, - 
- 
i
B. 6 - 2i, -6 - 2i
C. 
- 
i, - 
+ 
i
D. 
+ 
i, - 
- 
i
Answer: A
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Evaluate.
A. -i B. -1 C. i D. 1
Solve the problem.If sin ? = 0.8, find the value of sin ? + sin (? + 2?) + sin (? + 4?).
A. 2.4 + 6? B. 4.4 C. 2.4 D. 0.8
Provide an appropriate response.The table below describes the smoking habits of a group of asthma sufferers.
If one of the 1038 subjects is randomly selected, find P(H), the probability that the person is a heavy smoker. Then find P(M), the probability that the person chosen is a man. Then find P(H ? M), the probability that the person is a heavy smoker and a man. Are the events "being a heavy smoker" and "being a man" independent? How can you tell?
What will be an ideal response?
Express the product as a sum containing only sines or cosines.cos 
cos 
A. 
[cos (3?) - sin (2?)]
B. 
cos2 (5?)
C. 
[cos (6?) - sin (4?)]
D. 
[cos (2?) + cos (3?)]