Analyse/Limieten: verschil tussen versies

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Regel 239:
 
<math>-1 \leq f(x) \leq \frac{1}{x}</math>
 
To further explain, earlier we said that "however close we want the function to the limit, we can find a corresponding x close to our value." Using our new notation of epsilon (<math>\epsilon</math>) and delta (<math>\delta</math>), we mean that if we want to find f(x) within <math>\epsilon</math> of L, the limit, then we know that there is a x within <math>\delta</math> of c that puts it there
 
 
Of course, we know of a very good way to do this; we simply create a function, so that for every epsilon, it can give us a delta. In this case, it's a rather easy function; all we need is <math>\delta(\epsilon) < \sqrt{\epsilon}</math>.
 
==Voorbeelden==
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