[问答题]点P(1,1,-1)关于平面z-2y+z-4=O对称的点Q的坐标是-------------.
[问答题]点P(1,1,-1)关于平面z-2y+z-4=O对称的点Q的坐标是------------.
[单选题]空间点P(1,3,-4)关于平面3x+y-2z=0的对称点是()。A.(5,-1,0)B.(5,1,0)C.(-5,-1,0)D.(-5,1,0)
[单选题]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)
[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,