级数均收敛是级数收敛的https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/f64dd2a6870e4d06984b443719788308.png
举一反三
- 这个级数收敛吗？https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/16f58973296d49c4a3f7f6f66a46c00a.png
- 前项和为的级数是（ ）https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/53e45c86025d478084e3f2449447d544.png
- 设x=-1的时候，级数条件收敛,则级数https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/401402683ec94a2282d52ec20c6bc17a.png
- 若级数http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/8905974d3ec04f3285b62c18114467c3.png收敛，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/221e7836b56b4f99b50bc3016b80400d.png收敛。（ ）<br>
- 若级数与都发散，则https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/be817f06362e4541a985431b4d3706f5.png