Asked by John

Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.

7pi/3
Answered by Reiny
one rotation is 2π radians

so to get a positive coterminal angle ADD 2π
7π/3 + 2π
= 7π/3 + 6π/3
= 13π/3

to get a negative coterminal angle SUBTRACT 2π

7π/3 - 2π
= ...

I will let you finish it.
Answered by Reiny
Just realized, you will have to subtract 4 π to make it negative.
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