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JEE MAIN 2019
10-01-2019 S2
Question
Let $f:(-1,1) \rightarrow R$ be a function defined by $f(x)=\max \left\{-|x|,-\sqrt{1-x^2}\right\}$. If $K$ be the set of all points at which $f$ is not differentiable, then K has exactly
Select the correct option:
A
Three elements
B
Two elements
C
One element
D
Five elements
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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JEE Main
Mathematics
Easy
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