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OpenStudy (anonymous):
Find the exact value of arctan (sin (π/2))
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OpenStudy (anonymous):
I got 0.7853981634?
OpenStudy (anonymous):
I know it's pi/4 I just don't understand why.
OpenStudy (anonymous):
Yeah 0.78 is pi/4, but for my question I need to explain why.
OpenStudy (anonymous):
Sin(pi/2)=1, then let x= ArcTan(Sin(pi/2))=ArcTan1 that is Tanx=1
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