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July 4, 2015

Homework Help: Algebra 2/ Trigonometry

Posted by Moe on Saturday, April 27, 2013 at 9:56pm.

If cos θ = c, then sin˛θ/2 equals

1) 1-c/2
2) 1+c/2
3) 1-c/c+c
4) 1-c/4

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