Calculus III: Three Dimensional Coordinate Systems (Level 6 of 10)

The video covers three complex problems using the 3D distance formula. It starts with analyzing triangle PQR to determine its type, then finds points on a line perpendicular to the XY plane at a specific distance from another point. Finally, it identifies a point on the Y-axis equidistant from two given points.

What new insight or understanding did you gain from this video?