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posted by Moe Saturday, April 27, 2013 at 10:01pm.

The expression oos² θ/sin θ + sin θ is equivalent to 1) 1 + cos² θ 2) cos² θ 3) sin θ 4) csc θ

(1-sin^2)/sin + sin 1/sin - sin + sin 1/sin = csc

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