如果平面与椭球面交于一条曲线,则该曲线一定是椭圆。/ananas/latex/p/278259
举一反三
- 已知一曲线通过点,且在曲线上任一点处的法线的斜率等于,则该曲线的方程为( )/ananas/latex/p/255043/ananas/latex/p/7323/ananas/latex/p/255044
- 若球面和球面交线为圆,则该圆半径为/ananas/latex/p/149125/ananas/latex/p/542851
- 已知球面经过与面交成圆周,则此球面的方程是( )/ananas/latex/p/268803/ananas/latex/p/34549/ananas/latex/p/268804
- A:平面,B:球面,C:旋转椭球面,D:椭球面,E:圆柱面,F:抛物柱面,G:椭圆柱面,H:旋转抛物面,I:圆锥面,J:椭圆锥面,K:马鞍面。则: (1)是____; (2)是______; (3)是______; (4)是______; (5)是______; (6)是______; (7)是______; (8)是______; (9)是______; (10)是______; (11)是______; (12)是______; (13)是______;/ananas/latex/p/1045101/ananas/latex/p/28097/ananas/latex/p/958152/ananas/latex/p/39419/ananas/latex/p/973515/ananas/latex/p/47030/ananas/latex/p/645788/ananas/latex/p/36944/ananas/latex/p/34552/ananas/latex/p/422334/ananas/latex/p/1045357/ananas/latex/p/36098/ananas/latex/p/596597
- 计算曲线积分, 其中L是椭圆沿顺时针一周。/ananas/latex/p/940977/ananas/latex/p/92411