Explanation:Coterminal angles are angles who shares the same initial and final terminal sides.You can find it by adding or subtracting 2π and you can perform that tasks several times to obtains many more coterminal angles.
a.Answer:Coterminal angles=-5π/3,π/3,13π/3...
Quadrant 1
b.Answer:Coterminal angles=-25π/12,23π/12...
Quadrant 4
c.Answer:Coterminal angles=-60°,300°,660°,1440°...
Quadrant 4
