Question #794

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

Expert's answer

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

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

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