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The value of 2 sin A cos^(3)A-2 cos A si...

The value of `2 sin A cos^(3)A-2 cos A sin^(3)A` is …………

A

`sin 4A`

B

`cos 4A`

C

`(1)/(2)sin4A`

D

`(1)/(2)cos 4A`

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