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Mathematics, 20.09.2020 15:01 HunchoPoncho

Which expression is equal to –1? cot StartFraction pi Over 4 EndFraction sin StartFraction pi over 2 EndFraction sin StartFraction 3 pi Over 2 EndFraction tan StartFraction 5 pi Over 4 EndFraction

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Which expression is equal to –1? cot StartFraction pi Over 4 EndFraction sin StartFraction pi over 2...

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