Find the foci of the ellipse.
+ 
= 1
A. (-3, -1+ 
), (-3, -1 - 
)
B. (-9, -1), (3, -1)
C. (- 
, -1), (
, -1)
D. (-3 + 
, -1), (-3 - 
, -1)
Answer: D
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Solve the equation on the interval [0, 2?).cos 2x = 
- cos 2x
A. 
, 
, 
, 
B. 0, 
, ?, 
C. 
, 
, 
, 
D. no solution
Graph.4(y + 1)2 - 16(x + 4)2 = 64
A. 
B. 
C. 
D. 
Find 
if 
and ? terminates in QII.
?
A. ?
B. 
C. ?
D. 
E. 
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°), 