设 则A<sup>n</sup>=().

设<img src='https://img2.soutiyun.com/ask/2020-08-14/966244002022246.png' />则A<sup>n</sup>=(). <img src='https://img2.soutiyun.com/ask/2020-08-14/966244012904869.png' />

时间:2023-07-03 13:16:40

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