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If cosalpha+2cosbeta+3cosgamma=sinalpha+...

If `cosalpha+2cosbeta+3cosgamma=sinalpha+2sinbeta+3singamma=0`, then the value of `sin3alpha+8sin3beta+27sin3gamma` is sin(a+b+gamma) b. `3sin(alpha+beta+gamma)` c. `18"sin"(alpha+beta+gamma)` d. `sin(alpha+2beta+3)`

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