cos 4x =1 -8sin^2x cos^2 x...

` cos 4x =1 -8sin^2x cos^2 x `

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Prove the following: cos 4x = 1 - 8sin^2 x cos^2 x

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

cos4x=1-8sin^(2)x cos^(2)x

cos4x=1-8sin^(2)x cos^(2)x

cos4x=1-8sin^(2)x cos^(2) x

Prove that :cos4x=1-8sin^(2)x cos^(2)x

cos 4x =1- 8 sin ^(2) x cos ^(2) x

cos 4x =1- 8 sin ^(2) x cos ^(2) x

cos 4x =1- 8 sin ^(2) x cos ^(2) x

cos 4x =1- 8 sin ^(2) x cos ^(2) x

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