1. Tardigrade
  2. Question
  3. Mathematics
  4. Let f ( x )=( e ln x ⋅ operatornamesgn( x 2+ x +1)/ ln x ). If f ( x )= k has one distinct solution then range of k is,

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Q. Let $f ( x )=\frac{ e ^{\ln x } \cdot \operatorname{sgn}\left( x ^2+ x +1\right)}{\ln x }$. If $f ( x )= k$ has one distinct solution then range of $k$ is, $

Application of Derivatives

Solution:

Correct answer is (c) $(-\infty, 0) \cup\{ e \}$

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