Find all solutions of the equation. Leave answers in trigonometric form.x3 + 8i = 0
A. {2 cis 270°, 2 cis 210°, 2 cis 150°}
B. {2 cis 270°, 2 cis 30°, 2 cis 150°}
C. {2 cis 90°, 2 cis 210°, 2 cis 330°}
D. {2 cis 90°, 2 cis 150°, 2 cis 30°}
Answer: C
Mathematics
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Simplify.
? 
A. 
B. - 
C. 
D. - 
Mathematics
Graph the function on the indicated interval.y = cos (?x) + 3 sin x, 0 ? x ? 6.5 
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. Assume that all variables are positive.
? 
A. 
B. 15
C. 8
D. 
Mathematics
Solve.-6b + 8 + 4b = -3b + 13
A. b = -8 B. b = 5 C. b = -13 D. b = 13
Mathematics