已知直线,平面π:-2x+2y+z-1=0,则()。
A . L与π垂直相交
B . L平行于π但L不在π上
C . L与π非垂直相交
D . L在π上
[单选题]已知曲面z=4-x2-y2上点P处的切平面平行于平面2x+2y+z-1=0,则点P的坐标是().A . (1,-1,2)B . (1,1,2)C . (-1,1,2)D . (-1,-1,2)
[单选题]已知曲面z=4-x2-y2上点P处的切平面平行于平面2x+2y+z-1=0,则点P的坐标是( )。A.(1,-1,2)B.(-1,1,2)C.(1,
[单选题]已知曲面z=4-x2-y2上点P处的切平面平行于平面2x+2y+z-1=0,则点P的坐标是( )。A.(1,-1,2)B.(-1,1,2)C.(1,
[单选题]已知曲面z=4-x2-y2上点P处的切平面平行于平面2x+2y+z-1=0,则点P的坐标是( )。A.(1,-1,2)B.(-1,1,2)C.(1,
[单选题]已知曲面z=4-x2-y2上点P处的切平面平行于平面2x+2y+z-1=0,则点P的坐标是( )。A.(1,-1,2)B.(-1,1,2)C.(1,
[单选题]已知曲面z=4-x2-y2上点P处的切平面平行于平面2x+2y+z-1=0,则点P的坐标是( )。A.(1,-1,2)B.(-1,1,2)C.(1,
[单选题]已知曲面z=4-x2-y2上点P处的切平面平行于平面2x+2y+z-1=0,则点P的坐标是( )。A.(1,-1,2)B.(-1,1,2)C.(1,
[单选题]已知曲面z=4-x2-y2上点P处的切平面平行于平面2x+2y+z-1=0,则点P的坐标是( )。A.(1,-1,2)B.(-1,1,2)C.(1,
[单选题]已知曲面z=4-x2-y2上点P处的切平面平行于平面2x+2y+z-1=0,则点P的坐标是( )。A.(1,-1,2)B.(-1,1,2)C.(1,
[单选题]已知曲面z=4-x2-y2上点P处的切平面平行于平面2x+2y+z-1=0,则点P的坐标是( )。A.(1,-1,2)B.(-1,1,2)C.(1,