What is the angle between 0 radians and 2π radians that is coterminal to the given angle, 9pi/4?

1 Answer
sankarankalyanam
Mar 9, 2018

#color(purple)(pi / 4# is the coterminal angle of #(9pi)/4# between #(0, 2pi)#

Explanation:

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The coterminal angle is to be between #0# & #2pi#

Given angle #(9pi) / 4#

We will subtract #2pi# to get the coterminal angle.

#(9pi) / 4 - 2pi = (9pi) / 4 - (8pi) / 4 = color(purple)(pi / 4#

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