作者JohnMash (Paul)
看板Math
標題Re: [級數] 級數的上界
時間Thu Jun 2 07:27:41 2011
※ 引述《handsboy (夠夠拋兒瑞久)》之銘言:
: Are the following sequences Z_1,Z_2,... bounded? Convergent? Find their
: limit points.
: Z_n = (3+4i)^n / n!
|Z_n| = 5^n / n!
|Z_n|→0 as n→∞
Hence,
Z_n→0 as n→∞
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→ handsboy :可是答案是bounded,convergent to 0 @@ 06/03 00:21
→ handsboy :不是還是感謝您 06/03 00:21