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If f:R-R is defined by f(x) = x2-3x+2forall XER, then find fof. |
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Answer» f(f(x)) = f(x2 - 3x + 2) = (x2 - 3x + 2)2 -3(x2-3x+2)+2 = X4 + 9x2 + 4 - 6x3 - 12x + 4x2 - 3X2 + 9x - 6 + 2 = x4 - 6x3 + 10x2 - 3x f(f(x)) = x4 - 6x3 + 10x2 - 3x |
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