Asked by Kayla
an angle with the radian measure of 9pi/5. find radian measure of its reference angle. answers: -4/5, 4pi/5, -pi/5, or pi/5
Answers
Answered by
Reiny
9π/5 = 2π + π/5
so the "angle in standard position" or the "reference angle"is π/5
so the "angle in standard position" or the "reference angle"is π/5
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