二重积分交换积分次序上下限如何变
如题所述
第1个回答 2014-07-03
看积分区域了,不一定的
第2个回答 2014-07-03
画出积分区间就好
第3个回答 2014-07-03
拿道题。。。试一下
追问
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/8435e5dde71190efa26c1305cc1b9d16fcfa6051?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追答
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/38dbb6fd5266d0162f7f1ef2952bd40734fa3581?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
把图像画出来后去看
追问谢谢
追答不谢
追问我有个新问题你能不能看看
追答嗯。。行吧(⊙_⊙)
追问看见了么
追答额。。没看见
追问没发在这里啊
重新提问的
追答没看见。。。
看到了
追问恩恩
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/9e3df8dcd100baa1c6c7c5614510b912c9fc2e04?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
酱呢
追答ln 那边不知道是绝对值。。还是有n。。
追问1+x跟1+1/x外面的都是绝对值
追答
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/241f95cad1c8a786c99fc7d46509c93d71cf50b6?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
还没做完,不过做到那部很好画了
追问还有一道还要帮忙看下
拜托了
追答行吧。
追问不对你在这里做我没法采纳你答案啊
追答。。额。没事
追问哎真是好人
那个ln1+x减去ln1+1/x得啥?
爱我知道了
追答
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d52a2834349b033bc179700017ce36d3d439bd73?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追问谢谢
但是麻烦你在那道题回个话我好采纳你答案啊亲
追答。。额。。好的
第4个回答 2014-07-03
先把积分区间画出来
第5个回答 2014-07-03
画图,把x,y的范围变一下
追答有没有具体例子,我给你讲
追问
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/eaf81a4c510fd9f94f8bd4b3272dd42a2934a448?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
拜托了
追答
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/7c1ed21b0ef41bd5b0726b2e53da81cb38db3dc2?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/1e30e924b899a9012963d8ec1f950a7b0308f592?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追问其实这题答案是这个
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/6a63f6246b600c3316205d12184c510fd8f9a18b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
这样的话我还是不懂
追答那就是我的图画错了
但是方法就是这个
追问啊好吧
追答你把积分图画出来
追问
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d52a2834349b033bc0ae710017ce36d3d439bdc2?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
你看我这个图这样下面上下限对吗
本回答被提问者采纳