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OpenStudy (anonymous):
Find the exact value of arctan (sin (pi/2)) For full credit, explain your reasoning.
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OpenStudy (shamil98):
pi/4
OpenStudy (anonymous):
but why is it pi/4? How do you find it? @shamil98
OpenStudy (anonymous):
Sin(pie/2)=1... U should know this by heart per the unit circle. Then u have arctan(1). This asks at what value is tan=1? Tan=sin/cos. so when do sin and cos have the same value? This is pie/4
OpenStudy (anonymous):
okay I think I understand now.
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