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Prove that sin theta cos^(3)theta - cos...

Prove that `sin theta cos^(3)theta - cos theta sin^(3) theta = (1)/(4) sin 4 theta`.

Text Solution

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The correct Answer is:
`= (sin 4theta)/(4)`
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Knowledge Check

  • 4 sin theta * cos^(3) theta-4 cos theta * sin ^(3)theta= A) 4 cos theta B) cos 4 theta C) 4 sin theta D) sin 4 theta

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