問題詳情

1(10%) A sequence {xn} in 

 is said to be a Cauchy sequence in case for every ε ＞ 0, there is a natural number n0 such that for all m,n＞ n0, then |xm — xn  |＜ ε. Show that a convergent sequence is a Cauchy sequence.

參考答案

答案：C
難度：簡單0.702364
統計：A(16),B(55),C(505),D(60),E(0)

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