JEE Main & Advanced
JEE Main Paper Phase-I Held on 07-1-2020 Morning
question_answer
Let S be the set of points where the function, \[f(x)=\left| 2-\left| x-3 \right| \right|,x\in R\], is not differentiable. Then \[\sum\limits_{x\in S}{f(f(x))}\] is equal to_____. [JEE MAIN Held on 07-01-2020 Morning]