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OpenStudy (anonymous):
Hey, can someone please help me evaluate sin(arccos(-9/sqrt(145)))?!?! :)
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OpenStudy (anonymous):
I need help ASAP!!!!!!!!!!!!!!!!!!!!!!!!
OpenStudy (anonymous):
you need the other side of the triangle |dw:1385479446001:dw|
OpenStudy (anonymous):
4rt6706?
OpenStudy (anonymous):
but the answer choices are: 8/sqrt(145) -8/sqrt(145) -sqrt(145)/sqrt(248) sqrt(145)/sqrt(248) How do i get my answer to one of these?
OpenStudy (anonymous):
|dw:1385480066778:dw|
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