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Precalculus
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OpenStudy (anonymous):
Find exact value: sin(2 cos^-1(-3/11))
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OpenStudy (sumi29):
With a calculator, it is pretty easy. Without it, I am not so sure, since the question asks for the exact answer.
OpenStudy (noelgreco):
First, draw the angle: |dw:1375302705073:dw|
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