1. The problem statement, all variables and given/known data The Cartesian coordinates of a point are given. (3,-5) (i) Find polar coordinates (r, θ) of the point, where r > 0 and 0 ≤ θ < 2π. (ii) Find polar coordinates (r, θ) of the point, where r < 0 and 0 ≤ θ < 2π. 2. Relevant equations r^2=x^2+y^2 tanθ=(y/x) → θ=arctan(y/x) 3. The attempt at a solution r=√(9+25)=√(34) θ=arctan(-5/3) The problem must be in exact terms which typically involves pi (in the problems I have worked at least). Radians and degrees are not allowed as an answer. What is the value for theta? I can't figure out where to go from there. Any help is appreciated. Thanks!