Cópia de Components, Magnitude and Angle of a vector.

By positioning the point A, the values for the Vector from the origin to point A are shown.[br]Both the components and ,magnitude and angle, are shown as well as the equations for translating between values.
Try moving the point to the various quadrants.[br]Look at the signs of the components.[br]Imagine a reference triangle between the vector and the x axis, what would sine and cosine of the origin angle be relative to the component signs?

Information: Cópia de Components, Magnitude and Angle of a vector.