Math topic中文

Spatial rectangular coordinate system

Understand the spatial rectangular coordinate system, locate points with it, and derive the distance formula between two points in space.

Practice questions

  1. 1在空间直角坐标系中，点A(1,-2,3)A(1\text{,-}2\text{,}3)A(1,-2,3)关于平面xozxozxoz的对称点为B,AB\text{,}AB,A关于xxx轴的对称点为CCC，则B,CB\text{,}CB,C两点间的距离为()()() A. 252\sqrt{5}25​…