Answer
$(0,\theta)$ where $-\infty \lt \theta \lt \infty$
Work Step by Step
A point in the polar coordinate is defined as$(r,\theta)$.
Here, $r$ is the distance between the pole and the origin and $\theta$ is the angle formed by the pole.
However, when the point is at the origin $(0,0)$ itself then $r=0$ and then the point in the polar coordinate can be defined as: $(0,\theta)$ where $-\infty \lt \theta \lt \infty$
