作者midarmyman (midarmyman)
看板trans_math
标题[积分]
时间Tue Jun 9 22:43:04 2009
∫∫(xy)/((x^2+y^2)^1/2) dA 1<=x<=2 1<=y<=2
教一下吧
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.117.198.78
1F：→ midarmyman: 140.117.198.78 06/09 22:52
※ 编辑: midarmyman 来自: 140.117.198.78 (06/09 22:52)
※ 编辑: midarmyman 来自: 140.117.198.78 (06/09 22:58)
2F：推 OKOK98:直接积就好了 答案好像有根号140.114.216.145 06/09 23:05
3F：→ midarmyman:对! 好贱的题目@@ 140.117.198.78 06/09 23:16
4F：推 Serenede:XD140.112.250.117 06/09 23:19
5F：→ midarmyman:哈哈 140.117.198.78 06/09 23:29
6F：→ GLP:直接积不难吧@@ 58.115.131.37 06/10 00:20
7F：→ midarmyman:看到这样就会想到极座标阿 哈哈哈 140.117.198.78 06/10 01:05