JEE Main & Advanced
Mathematics
Functions
Question Bank
Continuity
question_answer
If function \[f(x)=\left\{ \begin{matrix} x\,\,\,\,\,, & \text{if}\,x\,\text{is rational} \\ 1-x, & \text{if}\,x\,\text{is irrational} \\ \end{matrix}, \right.\] then \[f(x)\] is continuous at ...... number of points [UPSEAT 2002]