Answer
$(0,3)$
Work Step by Step
The point $(x,y)$ in the rectangular coordinate system can be expressed as:
$x=r \ \cos(\theta)$, $y=r \ \sin(\theta) ...(1)$
Here, we have $r=3 $ and $ \theta=\dfrac{\pi}{2}$
Plug these values in equation (1) to obtain:
$x=(3) \cos(\dfrac{\pi}{2})=(3)(0)=0 \\
y=(3) \sin(\dfrac{\pi}{2})=(3)(1)=3$
Therefore, the point has coordinates $(0,3)$ in the rectangular coordinate system.
