I'm stuck on what to do next

Problem:H(s)=s/square root of s subtract 1 Differentiate using the Quotient Rule

I got this far: (s^1/2-1)[s]-(s)[s^1/2-1]/(s^1/2)^2

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- Sep 16th 2007, 07:26 PMTskateSolve using Quotient Rule
I'm stuck on what to do next

Problem:H(s)=s/square root of s subtract 1 Differentiate using the Quotient Rule

I got this far: (s^1/2-1)[s]-(s)[s^1/2-1]/(s^1/2)^2 - Sep 16th 2007, 07:42 PMJhevon
- Sep 16th 2007, 07:58 PMKrizalid
I think he said

$\displaystyle H(s)=\frac s{\sqrt{s-1}}$ - Sep 16th 2007, 08:18 PMTskate
is this what you mean? Yes

http://www.mathhelpforum.com/math-he...4db591fa-1.gif - Sep 16th 2007, 08:21 PMKrizalid
Well, in that case

$\displaystyle \frac s{\sqrt s-1}=\frac{s\left(\sqrt s+1\right)}{s-1}$

Now apply the quotient rule.