Find the exact value of the expression.cot 
A. 
B. 
- 1
C. 2 + 
D. 2 - 
Answer: C
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Evaluate the factorial expression.
A. 2!
B. 
C. 56
D. 
A point P(r, ?) in polar coordinates is given. Determine the rectangular coordinates P(x, y).(-5, 120°)
A. 
B. 
C. 
D. 
Find all the complex roots. Leave your answers in polar form with the argument in degrees.The complex fifth roots of -2i
A. 32(cos 54° + i sin 54°), 32(cos 126° + i sin 126°), 32(cos 198° + i sin 198°), 32(cos 270° + i sin 270°), 
B. 
(cos 54° + i sin 54°), 
(cos 126° + i sin 126°), 
(cos 198° + i sin 198°), 
(cos 270° + i sin 270°), 
C. 
(cos 45° + i sin 45°), 
(cos 117° + i sin 117°), 
(cos 189° + i sin 189°), 
(cos 261° + i sin 261°), 
D. 
(cos 54° + i sin 54°), 
(cos 126° + i sin 126°), 
(cos 198° + i sin 198°), 
(cos 270° + i sin 270°), 
Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
A. x + 5 B. x - 4 C. x - 5 D. x + 4