Referencial Cartesiano no Espaço

Hello, today I'm going to talk about the Cartesian coordinate system in space. It's very similar to the plane coordinate system, but we have to add a third coordinate. That is, in addition to the abscissa and ordinate that we already had, we will now have the z-axis. To learn more about this: https://www.matematica.pt/aulas-exerc... Topics covered: 0:00 - Intro 0:18 - Coordinate axes 1:51 - Coordinates of a point 4:05 - Practical exercise 1 7:23 - Practical exercise 2