What is the point of intersection of the terminal side of -120 with the unit circle?

Question

asked Oct 26, 2019 118k views

1 Answer

Javcek · Answer 1 · 2019-10-30T20:31:26+0000

The coordinates of that point (P) are shown on the graph to be (-.5, -.87).
Their exact value is (-1/2, -(√3)/2).
They are (cos(120°), sin(120°)).