Find the points of local maxima or local minima and corresponding local maximum and local minimum values of each of the following functions. Also, find the points of inflection, if any:
f(x) = x/2 + 2/x, x > 0
f(x) = 
, x > 0
f'(x) = 
And f’’(x) = 
For maxima and minima,
f'(x) = 0
= 0
x = 2, – 2
now,
f’’(2) = 1/2 > 0
x = 2 is point of minima
we will not consider x = – 2 as x > 0
local min value = f(2) = 2
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