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If A+B+C=pi, the value of sin2A+sin2B+si...

If `A+B+C=pi`, the value of `sin2A+sin2B+sin2C=ksinAsinBsinC` then value of k is

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If A+B+C=pi, the value of sin2A+sin2B+sin2C=k sin A sin B sin C then value of k is

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Knowledge Check

  • If A+B+C=pi , then sin2A+sin2B-sin2C is equal to

    A
    4sinAsinBsinC
    B
    4cosAcosBsinC
    C
    4cosAcosBcosC
    D
    None of these
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