Continuity and DifferentiabilityHard

Question

Let the function f, g and h be defined as follows -
f(x) =
g(x) =
h (x) = |x|3    for - 1≤ x ≤ 1
Which of these functions are differentiable at x = 0?

Options

A.f and g only
B.f and h only
C.g and h only
D.none

Solution

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