Write the value of the derivative of f(x) = |x – 1| + |x – 3| at x = 2.

10

Write the number of points where f(x) = |x| + |x – 1| is continuous but not differentiable.

11

If exists finitely, write the value of .

13

If write the value of

1

Choose the correct answer.

Let f(x) = |x| and g(x) = |x³|, then