function

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f(x) is defined for x > âˆ’1 and has a continuous derivate. If f satisfies f(0) = 1, fâ€²(0) = 0;
(1 + f(x)) fâ€²â€²(x) = 1 + x. If x is positive then fâ€²(x) is
(A) always positive (B) always negative
(C) always non-negative (D) none of these

#Mathematics #Calculus #Relation & Functions

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1 Answers

1133

Sourish Ghosh ·2014-02-05 04:44:07

I think some more data is required.

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