Question

If sin theta=1/2, which could not be the value of theta?
A. 30 degrees
B. 210 degrees
C. 150 degrees
D. 390 degrees

Answer 1

*Waits for Batman to say something so I can give him a medal for smartness*

Answer 2

You can just punch each of the solution given into a calculator and see if it = 0.5.

Answer 3

But from what I remember it's 210 degrees because on the unit circle that would be negative.

Answer 4

And I'm definitely not going over the unit circle here lol.

Answer 5

Find the period, range, and amplitude of the cosine function. y=-4cos 8x

Answer 6

-.-