- #1
phillyolly
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Homework Statement
(a) Find the intervals on which f is increasing or decreasing.
(b) Find the local maximum and minimum values of f.
(c) Find the intervals of concavity and the inflection points.
x2/(x2+3)
Homework Equations
The Attempt at a Solution
a) I find that
f'(x)=6x/(x2+3)2
I am stuck because (x2+3)2 has no solutions and I don't know how to define x in order to proceed further.
If anybody can help me out understanding this, I will be very thankful.