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,
[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,