MCQ
Let a function $f\left( x \right) = \left\{ \begin{gathered}
- \ln \left( {3x - \left[ {3x} \right]} \right)\,;\,\,3x \ne n;n \in N \hfill \\
\ln \left( {\operatorname{sgn} \left( {3x} \right)} \right)\,\,\,\,\,\,\,;\,\,3x = n;n \in N \hfill \\
\end{gathered} \right.,$ (where [.] and sgn $(x)$ denotes greatest integer function and signum function respectively) then number of point $(s)$ , where $f(x)$ is minimum in $x \in (0, 5)$ , is
- \ln \left( {3x - \left[ {3x} \right]} \right)\,;\,\,3x \ne n;n \in N \hfill \\
\ln \left( {\operatorname{sgn} \left( {3x} \right)} \right)\,\,\,\,\,\,\,;\,\,3x = n;n \in N \hfill \\
\end{gathered} \right.,$ (where [.] and sgn $(x)$ denotes greatest integer function and signum function respectively) then number of point $(s)$ , where $f(x)$ is minimum in $x \in (0, 5)$ , is
- A$0$
- B$4$
- C$5$
- ✓$14$
