12. Which of the choices below give(s) the best definition of convergence of a,? I. for any given e > 0,3 n(e) E R | a, - a|< e Vn 2n(e). II. for any given e > 0, 3 n(e) E R | a, – am 0,3 n(e) E R 3 a – e < a, < a + € V n2 n(e). A. I only B. I and III only С. П only D. I, II and III E None of the above choices A, B, C or D

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