1.

Let f(x) be a polynomial of degree 4 with f(2)=-1, f^(')(2)=0,f^('')(2)=2,f^(''')(2)=24, then the value of f^('')(1) is

Answer»

24
26
28
30

Solution :Let `f(x)=a(x-2)^(4)+b(x-2)(3)+C(x-2)^(2)+d(x-2)-1`
`f(x)=12(x-2)^(2)-12(x-2)+2`
`f^''(1)=26`


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