设,,证明:;并求下列极限:

设<img src='https://img2.soutiyun.com/ask/2020-12-15/976895300573634.png' />,<img src='https://img2.soutiyun.com/ask/2020-12-15/976895311426255.png' />,证明:<img src='https://img2.soutiyun.com/ask/2020-12-15/976895323305934.png' />;并求下列极限: <img src='https://img2.soutiyun.com/ask/2020-12-15/976895333998546.png' />

时间:2023-08-03 10:52:31

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