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What is critical point how it is different from externum points?

How many critical , externum points does it have f(x)=1/x

6 years ago


Answers : (1)


Dear vikash,

If f(x) has a local extremum at c, then either

\begin{displaymath}f'(c) = 0\;\;\mbox{or $f'(c)$ does not exist.}\end{displaymath}

These points are called critical points.


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Sagar Singh

B.Tech IIT Delhi

6 years ago

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