Maxima and MinimaHard

Question

If f(x) = x3 − 3x2 + 3x + 7, then -

Options

A.f(x) has a maximum at x = 1
B.f(x) has a minimum at x = 1
C.f(x) has  a point of inflexion at x = 1
D.None of these

Solution

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