JEE Main 2025 Mathematics question
Let [x] denote the greatest integer function, and let m and n respectively be the numbers of points, where the function f(x) = [x] + |x - 2|, , is not continuous and not differentiable. Then m + n is equal to :
Answer: (3)
Solution
f(x) is not continuous at 4 points and not differentiable at 4 points, so m + n = 8.