(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

[tex]D_x(\frac{1}{x^2}-x)[/tex]

2. Relevant equations

[tex]\lim_{h \to 0} \frac{f(x+h)-f(x)}{h}[/tex]

3. The attempt at a solution

[tex]\lim_{h \to 0} \frac{\frac{1}{2xh}+\frac{1}{h^2}-h}{h}[/tex]

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# Homework Help: Need help on derivatives

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