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May 6, 2016

Homework Help: trigonometry

Posted by Yulieth on Sunday, November 20, 2011 at 11:13pm.

if cosθ=2/3 and tanθ<0 find the exact value

sin(θ-5π/3)

sin2θ

cos2θ

cos(θ/2)

can some1 please help me?

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