determine which of the following pairs are coterminal (a) 420°,-300° (b) 330°,-45° ( c) 330°,-60° (d) 1230° ,- 930°
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Answer:210 & -150 are co-terminal
Step-by-step explanation:
= 210-(-150)
=210+150
=360
=360 is multiple of 360 . Hence the 210
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