bisherdula
2020-10-12T11:00:55+00:00
三重积分计算，用两种不同的方法得出了不同的结果，算了一下午我没搞明白，[img]https://img.nga.178.com/attachments/mon_202010/14/-7Q5-ddquKtT1kShq-cn.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202010/14/-7Q5-ar6oK14T1kSha-c0.jpg.medium.jpg[/img]
用极坐标也是一样，
但是另外一个题我用视频方法结果不对了
[img]https://img.nga.178.com/attachments/mon_202010/14/-7Q5-e9o1K2bT3cSlc-sg.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202010/14/-7Q5-9pcjK1vT3cSlc-sg.jpg.medium.jpg[/img]
用极坐标也是一样，
但是另外一个题我用视频方法结果不对了
[img]https://img.nga.178.com/attachments/mon_202010/14/-7Q5-e9o1K2bT3cSlc-sg.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202010/14/-7Q5-9pcjK1vT3cSlc-sg.jpg.medium.jpg[/img]