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Think about the fraction . As x gets smaller using positive numbers, the fraction gets bigger to the point where the value increase to . As x gets bigger with negative numbers (i.e -1 < -0.1), the value of the fraction goes to . We leave it undefined because mathematicians aren't sure where its limit is or .

edited Jun 14 '19 at 12:13 Asked Jun 14 '19 at 06:02 by Lucy