Question

How do I change polar coordinates to rectangular?

Answer 1

You can start by using
x=rcosθ
y=rsinθ

Answer 2

x^2+y^2=1?

Answer 3

That is for cartesian to polar

Answer 4

oh so I just plug in what x and y equal into the calc because this isn't a special angle

Answer 5

When r=1, θ=45
\[x=\frac{\sqrt2}{2} \\ \\ y=\frac{\sqrt2}{2}\]
We got coordinates
\[R(\frac{\sqrt2}{2} ,\frac{\sqrt2}{2})\]

Answer 6

We can find x and y directly like that

Answer 7

I got it now. thanks!

Answer 8

yw