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posted by Jimmy Friday, January 27, 2012 at 6:21pm.

If sin(θ) = -1/√2, find sin2(θ). (Recall that sin2(θ) means (sin(θ))2.) sin2(θ) =

You mean sin^2 theta I think Please use ^ for "to the power" (-1/sqrt 2)(-1/sqrt 2) = 1/2

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