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Limits: with Absolute Value
I turn most limits into split (piecewise) functions when dealing with absolute values. That lets me evaluate the limit with other methods (like factoring) from the left and the right, so see if the doublesided limit exists.
![Limit of absolute value functions [ lim |x^3 x|/(x^3 |x|) as x goes to 0 ]](https://i.ytimg.com/vi/nJ9lEolfVpU/mqdefault.jpg)
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