Solve Trig Limit Problem: lim (x->0) \frac{x - sinx}{x^{3}}

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Homework Statement



is there a way to solve

lim (x->0) [tex]\frac{x - sinx}{x^{3}}[/tex]


using the fact that sinx / x = 1

or is it much more complicated.. I've tried to break it down into sinx/x everyway i can think of with no luck..
 
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Do you know l'hospital's rule?

I am thinking of a way to do it with only sin(x)/x but can't come up with a good way immediately.
 
I am not familiar with l'hospital's theorem yet...