点M(1,2,3)关于坐标平面xoy的对称点是( )
A: (1,2,-3)
B: (1,-2,3)
C: (-1,2,-3)
D: (1,-2,-3)
A: (1,2,-3)
B: (1,-2,3)
C: (-1,2,-3)
D: (1,-2,-3)
举一反三
- 点(1,−2,3)关于xoy平面、ox轴及坐标原点的对称点分别为(<br/>) A: (1,−2,−3),(1,2,−3)及(−1,2,−3) B: (1,−2,−3),(−1,−2,3)及(−1,2,−3) C: (−1,2,3),(−1,−2,3)及(1,−2,3) D: (−1,2,3),(−1,−2,3)及(−1,2,−3)
- 点(1,2,3)关于xoy坐标面对称点的坐标是_____. A: (1,2,-3) B: (1,-2,-3) C: (-1,-2,-3) D: (-1.2,3)
- 点(-1,2,3)关于y轴的对称点的坐标是______ A: (1,-2,-3) B: (-1,-2,-3) C: (1,2,-3) D: (1,-2,3)
- 点(1,2,3)关于原点的对称点坐标为( ). A: (1,-2,-3) B: (-1,-2,-3) C: (-1,2,-3) D: (1,2,3)
- 点P(1,2,3)关于OZ轴的对称点的坐标为() A: (-1,-2,3) B: (1,2,-3) C: (-1,-2,-3) D: (-1,2,-3)