How do you find the rectangular coordinate of #(sqrt 1, 225^o)#?
I will assume the original coordinates are polar. If
We use trigonometry to convert polar coordinates to rectangular. See this answer for a more detailed discussion:
In this case, the hypotenuse is the distance of the point from the origin, in this case
That means the rectangular (sometimes called Cartesian) coordinates of the point in question are
This makes sense, because