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
Answers: 2
![[\because \sin(\pi+\theta)=-\sin \theta]](/tpl/images/0771/6320/a2f0a.png)
![[\because \tan(\pi+\theta)=\tan \theta]](/tpl/images/0771/6320/8bc47.png)
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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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