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Help 46

 May 17, 2018
 #1
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Hey NSN!

 

Find \(\csc{\frac{5\pi}{4}}\)

 

\(\csc{\frac{5\pi}{4}}\) = \(\frac{1}{\sin{\frac{5\pi}{4}}}\)

 

\(\sin{\frac{5\pi}{4}}=\sin({\frac{\pi}{4}+\pi})=-\frac{\sin{\pi}}{4}=-\frac{\sqrt{2}}{2}\)

 

\(\boxed{-\sqrt{2}}\)

 

I hope this helped,

 

Gavin

 May 17, 2018

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