1、点(1,2,3)关于原点对称的点的坐标为( )
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(1, 2, 3)关于坐标原点O对称的点的坐标为( ) A: (-1, -2, -3) B: (-1, -2, 3) C: (1, 2, -3) D: (1, 2, 3)
- 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M(2,-3,1)关于坐标原点对称的点是( ) A: (-2,3,-1) B: (-2,-3,-1) C: (2,-3,-1) D: (-2,3,1)
- 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)