Question

Can someone please help me thank you! solve the equation cosx=-1/2 if 0 ≤ x ≤ 360

Answer 1

Any help is appreciated thank you

Answer 2

I believe the answer is 120 degrees and 240 degrees, is that correct?

Answer 3

cosx = -1/2
x = cos-1 (1/2) = 60
cos is only negative in the second and third quadrant
therefore, ITS EITHER
x =(180 -60) =120
OR
X = (180 + 60) =240

Answer 4

DEGREES

Answer 5

Thank you!

Answer 6

You explained it so well!