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sin 2 alpha + sin 2 beta + sin 2 gamma -...

`sin 2 alpha + sin 2 beta + sin 2 gamma - sin2(alpha + beta + gamma )=`

A

`4 sin ( alpha + beta ) sin ( beta +gamma ) sin (gamma + alpha ) `

B

`4 cos (alpha + beta ) sin (beta-gamma) sin(gamma + alpha ) `

C

`4 cos(alpha + beta ) cos (beta - gamma ) cos (gamma + alpha ) `

D

`4 sin (alpha+ beta ) sin (beta - gamma) sin(gamma + alpha ) `

Text Solution

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The correct Answer is:
A
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