Let(adsbygoogle = window.adsbygoogle || []).push({}); aandbbe real numbers witha<b, and letxbe a real number. Suppose that for each ε>0, the numberxbelongs to the open interval (a-ε,b+ε). Prove thatxbelongs to the interval [a, b].

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# Homework Help: Analysis question regarding the relationship between open and closed intervals

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