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The functions f(x)-e^(x)+x, being differ...

The functions `f(x)-e^(x)+x,` being differentiable and one-one, has a differentiable inverse `f^(-1)(x)` The value of `(d)/(dx)f^(-1)` at the point `f(log2)` is

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The correct Answer is:
`(1)/(3)`
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