MATHS

Prove the identity:
4x=1-8sin^2x+8sin^4x

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  1. Your "identity" makes no sense
    I will work on the RS to see where that goes

    RS = 1 - 8sin^2 x(1 - sin^2 x)
    = sin^2 x + cos^2 x - 8sin^2 xcos^2 x
    = going nowhere, unless I have something to aim for

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