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pop000
Dec 7, 2010, 02:10 AM
I got this Function 6/2radicallxl-1?

the x is into Absolute value and is into the radical.
I need to show the Derivative of this Function .
hope you Understand me :)

thanks

galactus
Dec 7, 2010, 06:44 AM
\frac{6}{2\sqrt{|x|}-1}

Consider both cases, the positive and negative.

Use the quotient rule.

\frac{6}{2\sqrt{x}-1}

\frac{6}{2\sqrt{-x}-1}

ebaines
Dec 7, 2010, 06:49 AM
It helps to use parentheses. Do you mean this:


\frac 6 {\sqrt{|x|}} -1


or this:


\frac 6 {\sqrt{|x|-1}}


or this:

\frac 6 {\sqrt{|x|}-1}


In any event, do as Galactus suggested - you'll have one answer for the domain x>=0, and another for x <0.

pop000
Dec 7, 2010, 08:33 AM
Thanks I Understand now :)