Prove that : cos 4x = 1 - 8 sin^2 x cos^...

Prove that : `cos 4x = 1 - 8 sin^2 x cos^2 x`.

Prove that : cos 4x = 1 - 8 sin^2 x cos^2 x.
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prove that sin^(8)x-cos^(8)x=(sin^(2)x-cos^(2)x)(1-2sin^(2)x cos^(2)x)
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intsin^(2)x cos^(2) xdx = (1)/(8)[x - (sin 4x)/(4)]+c सिद्ध कीजिये -
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cos 4x = 1- 8 sin^(2) x cos^(2)x
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सिद्ध कीजिए की : cos 4x =1 -8sin ^(2) x cos ^(2) x
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cos 4x = 1 -8 sin^(2) x cos^(2) x
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(cos^(2)x-sin^(2)x)/(sqrt(1+cos 4x))
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int (sin^(8) x - cos ^(8) x)/( 1 - 2 sin^(2) x cos^(2) x) dx is
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If sin x + sin^(2) x =1 " then " cos^(8) x + 2 cos^(6) x + cos^(4) x =
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