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17 November, 12:50

Fill the blank

___sinb = (1) / (2) [sin (a+b) - sin (a-b) ]

There are no answer choices

+1
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  1. 17 November, 13:18
    0
    Sin b=1/2

    Sin (a+b) - sin (a-b)

    Sina+Sinb-Sina+Sinb

    2Sinb

    2*1/2

    =1
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