为什么这个要用比值审敛法啊为什么用Un+1/Un 而不是An+1/An(系数)?为什么要把后面的1/(1+x)也放进去算啊?为什么要讨论它大于还是小于1?不懂啊.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/10 20:03:35
![为什么这个要用比值审敛法啊为什么用Un+1/Un 而不是An+1/An(系数)?为什么要把后面的1/(1+x)也放进去算啊?为什么要讨论它大于还是小于1?不懂啊.](/uploads/image/z/9887439-39-9.jpg?t=%E4%B8%BA%E4%BB%80%E4%B9%88%E8%BF%99%E4%B8%AA%E8%A6%81%E7%94%A8%E6%AF%94%E5%80%BC%E5%AE%A1%E6%95%9B%E6%B3%95%E5%95%8A%E4%B8%BA%E4%BB%80%E4%B9%88%E7%94%A8Un%2B1%2FUn+%E8%80%8C%E4%B8%8D%E6%98%AFAn%2B1%2FAn%EF%BC%88%E7%B3%BB%E6%95%B0%EF%BC%89%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E8%A6%81%E6%8A%8A%E5%90%8E%E9%9D%A2%E7%9A%841%2F%EF%BC%881%2Bx%EF%BC%89%E4%B9%9F%E6%94%BE%E8%BF%9B%E5%8E%BB%E7%AE%97%E5%95%8A%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E8%A6%81%E8%AE%A8%E8%AE%BA%E5%AE%83%E5%A4%A7%E4%BA%8E%E8%BF%98%E6%98%AF%E5%B0%8F%E4%BA%8E1%3F%E4%B8%8D%E6%87%82%E5%95%8A.)
xݒNQ_!!P|hMizmfv(V.Zjڂ m) \={+*Rx7{[Hv~E|~$? kX6)8F;_̫A;\&|ɳO-BvE}~.c*jQG"tbq
2Hgvs
9-NOGpqt"ϲITf!cf$18f_a&Ň
M
BY3dUHºd!K!cQG!4YF"N",I2R(AyWyEB,$o">% NQ5a&$BbXRe,/`!moujI2p1`Fei+7>EnKq.Pf?I 5ڻ.Fǫ>Ms^^kp:yZ
>
yW7AXh5HjVaX̖n!V\(j "irS`@ϋ?y;CH&