JEE Main 2019 Mathematics question
Let . Let S be the set of points in the interval (−4, 4) at which f is not differentiable. Then S:
Answer: (B)
Solution
Corners at x = 0, ±1 (switching between |x| and x) and at ±2 (slope changes from ±4 to ∓2).
Let . Let S be the set of points in the interval (−4, 4) at which f is not differentiable. Then S:
Corners at x = 0, ±1 (switching between |x| and x) and at ±2 (slope changes from ±4 to ∓2).