Question 242311
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \{x\,|\,x\,\in\,\I,\,5\ \leq\ x\ \leq\ 12\}]


or


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \{x\,|\,x\,\in\,\I,\,4\ <\ x\ <\ 13\}]


I have a slight preference for the former because there is less possibility of confusion about the endpoints.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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