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f(x)=-1+kx+k neither touches nor intecep...

`f(x)=-1+kx+k` neither touches nor intecepts the curve f(x)= Iog x, then minimum value of k `in`

A

(a) `((1)/(e),(1)/sqrt(e))`

B

(b) `(e,e^(2))`

C

(c) `((1)/sqrt(e),e)`

D

(d) None of these

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A
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