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Let f(x)=x^4-6x^3+12 x^2-8x+3. If Rolles...

Let `f(x)=x^4-6x^3+12 x^2-8x+3.` If Rolles theorem is applicable to `varphi(x)` on `[2,2+h]` and there exist `c in (2,2+h)` such that `varphi^(prime)(c)=0` and `(f(2+h)-f(2))/(h^3)=g(c),` then

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