The central angle, t, of a unit circle has sin = –y and cos = x. Which statement about the sine and cosine of Angle t is true?

Question

The central angle, t, of a unit circle has sin = –y and cos = x. Which statement about the sine and cosine of Angle t is true?

 

A. sin = y and cos = –x

B. sin = –x and cos = –y

C. sin = x and cos = y

D. sin = –y and cos = –x

Answer 1

It must be in quadrant 4 , because that is where the cosine is positive and sine is negative