判别下列广义积分的收敛性：

A .https://assets.asklib.com/images/image2/2017051116003216440.png B .https://assets.asklib.com/images/image2/201705111600412240.png C .https://assets.asklib.com/images/image2/2017051116005363651.png D .https://assets.asklib.com/images/image2/201705111601045755.png

A、<img src="https://p.ananas.chaoxing.com/star3/origin/3942bd6f39135cab420204a97119ee81.png"> B、<img src="https://p.ananas.chaoxing.com/star3/origin/2913758887dd3d8224ebfdf1eac66945.png"> C、<img src="https://p.ananas.chaoxing.com/star3/origin/4a6ae8baf11467104d967e608306ba24.png"> D、<img src="https://p.ananas.chaoxing.com/star3/origin/b20f3667301b0492cb88033598283a82.png">

A、丹尼尔·伯努利 B、奥古斯丁·路易·柯西 C、雅各布·伯努利 D、路易吉·圭多·格兰第

A .https://assets.asklib.com/psource/2015102916524112971.jpg B .https://assets.asklib.com/psource/2015102916530378081.jpg C .https://assets.asklib.com/psource/2015102916532976384.jpg D .https://assets.asklib.com/psource/2015102916534429085.jpg

A .https://assets.asklib.com/psource/2015102916541368162.jpg B .https://assets.asklib.com/psource/2015102916542663696.jpg C .https://assets.asklib.com/psource/2015102916544195401.jpg D .https://assets.asklib.com/psource/2015102916545395159.jpg

已知广义积分<img src='https://img2.soutiyun.com/ask/2020-12-20/977344836478918.png' />收敛于1(k＞0),则k=(). <img src='https://img2.soutiyun.com/ask/2020-12-20/97734484769256.png' />

<img src='https://img2.soutiyun.com/ask/2020-12-18/977158109953806.png' />

<img src='https://img2.soutiyun.com/ask/2021-01-25/980436331788089.png' />

<img src='https://img2.soutiyun.com/ask/2020-12-07/976216098402209.png' />

<img src='https://img2.soutiyun.com/ask/2021-02-05/981387122661124.png' />

<img src='https://img2.soutiyun.com/ask/2021-01-27/980593228129949.png' />

<img src='https://img2.soutiyun.com/ask/2021-02-05/98138654039982.png' />

<img src='https://img2.soutiyun.com/ask/2020-12-21/977434147244721.png' />

<img src='https://img2.soutiyun.com/ask/2021-02-02/981107891707849.png' />

<img src='https://img2.soutiyun.com/ask/2020-12-22/977477173109151.png' />