Question:
Let $S$ be the set of points where the function, $f(\mathrm{x})=|2-| \mathrm{x}-3||, \mathrm{x} \in \mathrm{R}$, is not differentiable.
Then $\sum_{x \in S} f(f(x))$ is equal to_______.
Solution:
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.