Position vector of a point for JEE

Formula

\(\vec{r}=x\hat{i}+y\hat{j}+z\hat{k}\)

Variables: \((x,y,z)\) are coordinates of the point relative to the origin.

Conditions: In 2D, \(\vec{r}=x\hat{i}+y\hat{j}\).

Coordinate-vector conversion.