(a) The Cartesian coordinates of a point are (1,1). (i) Find polar coordinates (r,θ) of the point, where r>0 and 0≤θ<2π. r= θ= (ii) Find polar coordinates (r,θ) of the point, where r<0 and 0≤θ<2π. r= θ= (b) The Cartesian coordinates of a point are (23–√,−2). (i) Find polar coordinates (r,θ) of the point, where r>0 and 0≤θ<2π. r= θ= (ii) Find polar coordinates (r,θ) of the point, where r<0 and 0≤θ<2π. r= θ=