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Let `f: [0, 2]->R` be a function which is continuous on [0, 2] and is differentiable on (0, 2) with f(0)=1. Let `F(x)= int_0^(x^2) f(sqrtt)dt`
for x `in` [0,2]. If F'(x)=f'(x) for all x `in` (0,2), then F(2) equals
A. |
`e^2-1` |
B. |
`e^4-1` |
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C. |
`e-1` |
D. |
`e^4` |
`=> f(x)=e^4 and F'(x)=f'(x)=>F(X)=f(x)+c=>F(x)=f(x)-1(text(since) F(0)=0)`
so, `F(2)=f(2)-1=e^4-1`