|Question 38Math

Question

Prompt
In the -plane, a unit circle with center at the origin contains point with coordinates and point with coordinates . If the measure of angle is radians, what is the value of ?
-5/3
1
-1.66
2
-1.67
3
5/3
4
1.66
5
1.67
6
1.666
7
1.667
8