[tex]-\frac{7}{6}\pi[/tex]
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:
[tex]\frac{5}{6}\pi-2\pi=-\frac{7}{6}\pi[/tex]
When we subtract from that 2pi we get this negative coterminal angle.
