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OpenStudy (anonymous):
find the exact value of sin2theta given , Costheta=1/6,0degrees,
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OpenStudy (campbell_st):
well use the information |dw:1399960846450:dw| find x using pythagoras' theorem then you can find sin(theta) then use the expansion \[\sin(2 \theta) = 2 \sin(\theta)\cos(\theta)\]
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