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Let f(x)and g(x) be twice differentiable...

Let f(x)and g(x) be twice differentiable functions on [0,2] satisfying `f''(x)=g''(x)`, `f'(1)=4`, `g'(1)=6`, `f(2)=3` and `g(2)=9`. Then what is `f(x)-g(x)` at `x=4` equal to ?

A

`-10`

B

`-6`

C

`-4`

D

`2`

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The correct Answer is:
A
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