Mathematics, 23.06.2019 07:00 miriamjb

Which quadrant contains -11pi/18 and what is the reference angle? a- ii 7pi/18 b- iii 7pi/18 c- ii 11pi/18 d- iii 11pi/18

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Which quadrant contains -11pi/18 and what is the reference angle? a- ii 7pi/18 b- iii 7pi/18 c- ii...