召唤泥潭数学大佬！！

[img]https://img.nga.178.com/attachments/mon_202105/01/-7Q16w-7jgeZkT3cS90-ji.jpeg[/img][img]http://img4.nga.cn/ngabbs/post/smile/a2_05.png[/img]

[img]https://img.nga.178.com/attachments/mon_202105/01/-7Q16w-8m1eZqT3cS140-1ys.jpeg[/img]
Wolfram alpha只能帮你到这里了，后面得加钱[img]http://img.nga.178.com/attachments/mon_201209/14/-47218_5052bc4cc6331.png[/img]

[quote][pid=512632141,26577356,1]Reply[/pid] Post by [uid=62524307]吕忆梦[/uid] (2021-05-01 23:46):

[img]https://img.nga.178.com/attachments/mon_202105/01/-7Q16w-7jgeZkT3cS90-ji.jpeg[/img][img]http://img4.nga.cn/ngabbs/post/smile/a2_05.png[/img][/quote]老哥看错了[s:ac:喘][s:ac:喘]1在外面

[img]https://img.nga.178.com/attachments/mon_202105/01/-7Q16w-d6vxXbZ30T3cSu0-6iq.jpeg[/img]

[quote][pid=512632221,26577356,1]Reply[/pid] Post by [uid=42975869]Mk17Mod0[/uid] (2021-05-01 23:47):

[img]https://img.nga.178.com/attachments/mon_202105/01/-7Q16w-8m1eZqT3cS140-1ys.jpeg[/img]
Wolfram alpha只能帮你到这里了，后面得加钱[img]http://img.nga.178.com/attachments/mon_201209/14/-47218_5052bc4cc6331.png[/img][/quote][s:ac:惊]还有这种软件

艹。你特么是来为难泥潭老哥？我是字母都看懂了

没仔细看，先分部积分吧，能把式子拆成2x(exp(x)-1)^0.5减去个啥，后边应该拆吧拆吧就行了吧
果然瞎了

[quote][tid=26577356]Topic[/tid] Post by [uid=62499982]意大利担担面面[/uid] (2021-05-01 23:35):

1992那题不会写[s:a2:大哭][s:a2:大哭]
[img]https://img.nga.178.com/attachments/mon_202105/01/-7Q16w-f32oZ2jT3cSqo-zk.jpg.medium.jpg[/img][/quote]应该是和伯努利不等式的变形有关吧

先分子分母乘 (e^x+1)^1/2 把分子有理化. 然后拆分两段. 后面就自己算吧.

[quote][pid=512633365,26577356,1]Reply[/pid] Post by [uid=62584764]烛时[/uid] (2021-05-01 23:52):

[img]https://img.nga.178.com/attachments/mon_202105/01/-7Q16w-d6vxXbZ30T3cSu0-6iq.jpeg[/img][/quote]牛批 zsbd