Please check my steps for global extrema of functions.(adsbygoogle = window.adsbygoogle || []).push({});

1) Finding Critical points.

2) Finding values of f at critical points and end-points.

3) Checking which one is largest and which is smallest.

4) Largest would be Global maxima and the smallest would be minima.

Now a question, i know how to find global extrema if they are at

end-points. How can i find local extrema if they occur at end-points?

I will be thankful to you if you illustrate it with a simple example.

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# Extrema of function

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