Question

The function $y=||x-1|-1|$ is differentiable for all real numbers except the points

• A. {0, 1, 2}
• B. {0, 1}
• C. {1, 2}
• D. {-1, 1}

Answer 1

The correct option is A {0, 1, 2}


Clearly, the given function f(x) is not differentiable at the points x = 0, 1 and 2.