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posted by brooke Tuesday, September 17, 2013 at 10:41pm.

If cot £ = -9/2 with £ in Quadrant II, find sin £

cot E = -9/12 = X/Y. r^2 = X^2 + Y^2 = (-9)^2 + 12^2 = 225 r = 15 sin E = Y/r = 12/15.

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