공간좌표(a Cartesian Coordinate System for a Three-Dimensional Space)

• 공간좌표(a Cartesian Coordinate System for a Three-Dimensional Space)

  [PDF] [영상(YouTube)] [Geogebra Tube]

• 공간에서 두 점 사이의 거리(Distance between Two Points in Space)

  [PDF] [영상(YouTube)] [Geogebra Tube]