logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
Home  >>  CBSE XII  >>  Math  >>  Application of Derivatives
0 votes

Prove that the following functions do not have maxima or minima: $ (ii)\: g(x)=\log x $

This is second part of multipart q4

Can you answer this question?
 
 

1 Answer

0 votes
Toolbox:
  • $\large\frac{d}{dx}$$(\log x)=\large\frac{1}{x}$
$f(x)=\log x$
Differentiating with respect to x we get,
$f'(x)=\large\frac{1}{x}$
when $f'(x)=0$
$\large\frac{1}{x}$$=0$
Which is not defined for any real $x$.
Hence $f(x)=\log x$ does not have maxima and minima.

 

answered Aug 7, 2013 by sreemathi.v
edited Aug 19, 2013 by vijayalakshmi_ramakrishnans
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...