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OpenStudy (anonymous):
Trigonometry Help!
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OpenStudy (anonymous):
OpenStudy (anonymous):
@ganeshie8
OpenStudy (anonymous):
@thomaster
OpenStudy (futureescape):
The sin of 120 is .866 which eliminates options c and d. square root of 3 is 1.732. 1.732 / 2 = .866 The answer is A.
OpenStudy (shamim):
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OpenStudy (anonymous):
sin (pi - x) =sin(x) so sin (120) = sin (180 - 60) = sin (60) = sqrt(3)/2
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