The general solution to the equation sin...

The general solution to the equation `sin3alpha=4sinalphasin(x+alpha)sin(x-alpha)` is

A

`npi+-pi//4,AAn inI`

B

`npi+-pi//3,AAninI`

C

`npi+-pi//9,AAn inI`

D

`npi+-pi//12,An inI`

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The correct Answer is:

B

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