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Prove that (" sin 8x cos x- sin 6x co...

Prove that `(" sin 8x cos x- sin 6x cos 3x")/(" cos 2x cos x - sin 4x sin 3x")= " tan " 2x`

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cos ^(2) 2x -cos ^(2) 6x = sin 4x sin 8x

cos ^(2) 2x -cos ^(2) 6x = sin 4x sin 8x

cos ^(2) 2x -cos ^(2) 6x = sin 4x sin 8x

cos ^(2) 2x -cos ^(2) 6x = sin 4x sin 8x

cos ^(2) 2x -cos ^(2) 6x = sin 4x sin 8x