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# Let f is A Differentiable Function Such That            .

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## Question

### Solution

Correct option is

We have,

Differentiating both sides we get;

[using Leibnitz-rule]

f (x) + f’(x) = x2 + 2x + f (x)

Integrating (iii) both sides;

But    f (0) = 0      ⇒      c = 0

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