Answer to Question #794 in Trigonometry for John

Question

How can we obtain the coterminal angle to given one?Find the coterminal angle to -120[sup]o[/sup].

Answer 1

As A(cot) = A + k*360, where k is any integer,
the coterminal angle to -120 takes infinite number of values, such as
A(cot) = -120 + 360 = 240
A(cot) = -120 + 2*360 = 600
A(cot) = -120 + (-1)*360 = -480