Mathematics, 06.08.2019 06:10, biyah40

For the following problem, assume that all given angles are in simplest form, so that if a is in qiv you may assume that 270° < a < 360°. if sin ( a ) = − 1/3 with a in qii then find cos a/2.

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For the following problem, assume that all given angles are in simplest form, so that if a is in qiv...