Maxima and MinimaMedium

Question

Let f(x) = | x |, then-

Options

A.f′(0) = 0
B.f(x) has a maximum at x = 0
C.f(x) has a minimum at x = 0
D.f(x) has no maximum and no minimum

Solution


f(x) = | x |
f(x) has minimum at x = 0

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