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February 27, 2015

February 27, 2015

Posted by **Lilly** on Wednesday, November 28, 2012 at 2:21pm.

- trig -
**Steve**, Wednesday, November 28, 2012 at 2:59pmcosθ = 2/√7 and 0 <= θ <= π means we are in the 1st quadrant.

so, sinθ = √(7-4)/√7 = √(3/7)

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