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2 April, 12:23

Evaluate 2sin (pi/3) cos (pi/3)

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  1. 2 April, 13:40
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    2sin (pi/3) * cos (pi/3)

    here π means 180 degree

    2 sin (180/3) * cos (180/3)

    2 sin 60° * cos 60° sin 60° = 2/3, cos60°=1/2

    [2*2/3]*[1/2]

    4/3*1/2

    answer = 2/3
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