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Find the greatest and least value of `y= x^(3)-3x^(2) + 6x-2` on `[-1,1]` y is differentiable function of x and `y'(x) = 3x^(2) -6x + 6= 3(x^(2) -2x+2) =3(x-1)^(2) gt 0`.

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MCGROW HILL PUBLICATION-APPLICATIONS OF DERIVATIVES-Question for Previous Year.s B-Architecture Entrance Examination Papers
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