→ 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
→ DVDVCD:我也看不懂0.0 218.168.134.78 07/04 12:55
推 zptdaniel:問曲面上哪些點的切面與平面Z=2 平行123.194.100.216 07/04 12:57
推 zptdaniel:之前有人問過囉 4,2, 正負5^(1/2)123.194.100.216 07/04 13:08
第6題
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.
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