Question

can someone please help me with precal?

Answer 1

do u have any question in particular?

Answer 2

do u know the value of sin 90 and cos 90 ??

Answer 3

(0,1)

Answer 4

right so when u substitute that in your option D,what did u get?

Answer 5

1

Answer 6

Are you familiar with the imaginary number i?

Answer 7

yes

Answer 8

We know -2 cubed must contain an i, in partucular -2^(1/3)i

Answer 9

Is there any solution that gives you that value?

Answer 10

D

Answer 11

It's actually a straight forward answer. The professor is trying to confuse you by throwing in sins and cosines. Simplify the solution and see what you get..

Answer 12

He or She is also testing you on your trig, kinda smart actually.

Answer 13

Correct