下列无穷函数中绝对收敛的是()。

A.<img src='https://img2.soutiyun.com/ask/2019-07-12/931777046302068.png' /> B.<img src='https://img2.soutiyun.com/ask/2019-07-12/931777058174924.png' /> C.<img src='https://img2.soutiyun.com/ask/2019-07-12/931777073741383.png' /> D.<img src='https://img2.soutiyun.com/ask/2019-07-12/931777085020813.png' />

时间:2024-02-03 09:58:26

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