Differentiating Logs and Exponentials help!!!! (2 Viewers)

[fatima96]

I'm having trouble with the following question
I've been using the quotient rule, only to get a totally retarded answer.
Please help me?
<a href="http://www.codecogs.com/eqnedit.php?latex=\dpi{300} ln\frac{x}{x^2@plus;1}" target="_blank"><img src="http://latex.codecogs.com/gif.latex?\dpi{300} ln\frac{x}{x^2+1}" title="\dpi{300} ln\frac{x}{x^2+1}" /></a>

 

[Aykay]

 

[fatima96]

Thank you so much!

 

[Shadowdude]

So basically, you had to use the chain rule.

 

[Aykay]

Of course.
OP, whenever you have a function of a function, the chain rule must be used. I just did it more systematically so you'd understand.

 

[nightweaver066]

Easier to differentiate