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Cos theta= -12/15 and Quadrant 2 Find Sin 2 theta

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Use double angle or half angle identity to find exact value of each expression. Please Help!!

 

asked Nov 26, 2013 in TRIGONOMETRY by homeworkhelp Mentor

1 Answer

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Cos theta = -12/15

In Quadrant 2, Cos theta is negitive and Sin theta is positive.

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answered Jan 17, 2014 by david Expert

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