Question: 3. Let (an) be a sequence such that lim inf(|an)) = 0. (a) Prove that for any real number r > 0, there exists infinitely

3. Let (an) be a sequence such that lim inf(|an))
3. Let (an) be a sequence such that lim inf(|an)) = 0. (a) Prove that for any real number r > 0, there exists infinitely many an's such that lan|

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