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Mathematics, 20.10.2020 03:01 sloane50

What is the reference angle and cosine of StartFraction 7 pi Over 6 EndFraction ? StartFraction pi Over 6 EndFraction, Negative StartFraction StartRoot 3 EndRoot Over 2 EndFraction
StartFraction pi Over 6 EndFraction, StartFraction StartRoot 3 EndRoot Over 2 EndFraction
StartFraction pi Over 3 EndFraction, negative one-half
StartFraction pi Over 3 EndFraction, one-half


What is the reference angle and cosine of StartFraction 7 pi Over 6 EndFraction ? StartFraction p

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