List of top Mathematics Questions on Continuity and differentiability asked in WBJEE

A function \( f \) is defined by \( f(x) = 2 + (x - 1)^{2/3} \) on \( [0, 2] \). Which of the following statements is incorrect?
Let \( f(x) = |1 - 2x| \), then:
The number of points at which the function $f \left(x\right)=max \left\{a-x, a+x, b\right\}, -\infty, 0 < a < b$ cannot be differentiable
If A=(3x−12x+3x+2) is a symmetric matrix, then the value of x is