Find the local maxima and local minima, if any, of the following functions. Find also the local maximum and the local minimum values, as the case may be:

f (x) = x2


f(x) = x2

f’(x) = 2x


Now, f’(x) = 0


x = 0


x = 0 is the only critical point which could possibly be the point of local maxima or local minima of f.


f’’(0) = 2, which is positive.


Then, by second derivative test,


x = 0 is point of local maxima and local minima of f at x = 0 is f(0) = 0.


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