The work is difficult so I think it's____(possible)to finish it in an hour.
在极坐标系下,已知圆O:ρ=cosθ+sinθ和直线l:ρsinθ-π4=22
(1)求圆O和直线l的直角坐标方程;
(2)当θ∈(0,π)时,求直线l与圆O公共点的极坐标.