` cos 6x = 32 cos^(6) x - 48 cos^(4) x + 18 cos^(2) x - 1`

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Prove that cos 6x =32 cos ^(6) x -48cos ^(4) x + 18 cos ^(2) x -1

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Prove that: cos 6x=32 cos^(6)x-48 cos^(4)x+18 cos^(4)x+18 cos^(2)x-1 .

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sin x + sin^(2) x + sin^(3) x = 1 rArr cos^(6) x - 4cos^(4) x + cos^(2) x =

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