作者chuo11 (草之摆)
看板trans_math
标题[考古] 96成大题目看不懂
时间Sat Jul 4 12:48:55 2009
第6题
Determine whether there are any points on the surface z^2+xy-2x-y^2=1
at which the tangent plane is parallel to z=2.
--
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 122.125.51.145
1F：→ DVDVCD:求跟z=2平行且在z^2+xy-2x-y^2=1上的切面? 218.168.134.78 07/04 12:54
2F：→ DVDVCD:我也看不懂0.0 218.168.134.78 07/04 12:55
3F：推 zptdaniel:问曲面上哪些点的切面与平面Z=2 平行123.194.100.216 07/04 12:57
4F：推 zptdaniel:之前有人问过罗 4,2, 正负5^(1/2)123.194.100.216 07/04 13:08