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OpenStudy (anonymous):
What is the exact value of sin pi/2 on the unit circle? Cos pi/6 ? The exact value of cos 45 degrees?
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OpenStudy (littlebird):
sin is the y values. pi/2 is another way of saying 90 degrees. The y value at 90 degrees on the unit circle is 1.
OpenStudy (anonymous):
ohh I making it harder than it seems thank you
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