Let f(x) be a twice differentiable function for all real values of x and satisfies f(1)=1, f(2)=4, f(3)=9. Then which of the following is definitely true?

\[f''(x)=f'(x)=5\] for some \[x\in (2,3)\]

\[f''(x)=3\,\forall \,x\in (2,\,\,3)\]

\[f''(x)=2\] for some \[x\in (1,3)\]

Let f(x) be a twice differentiable function for all real values of x a

1.	Let f(x) be a twice differentiable function for all real values of x and satisfies f(1)=1, f(2)=4, f(3)=9. Then which of the following is definitely true?
A.	\[f''(x)=2\forall x\in (1,3)\]
B.	\[f''(x)=f'(x)=5\] for some \[x\in (2,3)\]
C.	\[f''(x)=3\,\forall \,x\in (2,\,\,3)\]
D.	\[f''(x)=2\] for some \[x\in (1,3)\]
Answer» E.

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Let f(x) be a twice differentiable function for all real values of x and satisfies f(1)=1, f(2)=4, f(3)=9. Then which of the following is definitely true?

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