Question

Convert to rectangular coordinates:
r = sin(x) + cos(x)

Answer 1

rather a 1:1:sqrt(2) triangle?

Answer 2

\[\bf x=rcos(\theta) \implies \cos(\theta)=x/r\]\[\bf y=rsin(\theta) \implies \sin(\theta) = y/r\]\[\bf r^2=x^2+y^2\]Now plug everything in to get:\[\bf x^2+y^2=x+y\]Sorry i have to leave but u have to complete the square and u'll get an equation for a circle...

@zackalltrades