Answer
The point in rectangular coordinates is $(0,0)$
Work Step by Step
$(0, 13\pi)$
The point has $r=0$ and $\theta=13\pi$. The formulas for converting polar to rectangular coordinates are $x=r\cos\theta$ and $y=r\sin\theta$
Substitute the known values into the formula to obtain $x$ and $y$:
$x=r\cos\theta$
$x=(0)\cos(13\pi)=0$
$y=r\sin\theta$
$y=(0)\sin(13\pi)=0$
The point in rectangular coordinates is $(0,0)$
