Question

Find the measure of a negative angle coterminal with 5/3 radians

Answer 1

`-(7)/(6)\pi`

1) Note that the angle of 5/3π is equivalent to 300º and it is located in Quadrant IV.

2) So, we can write the following:

`(5)/(6)\pi-2\pi=-(7)/(6)\pi`

When we subtract from that 2pi we get this negative coterminal angle.