Tutorial Exercise The Cartesian coordinates of a point are given. (a) (7,-7) (i) Find polar coordinates (r, e) of the point, where r > 0 and 0 8 < 2. (ii) Find polar coordinates (r, e) of the point, where r < 0 and 0 < < 2. (b) (5,53) (i) Find polar coordinates (r, e) of the point, where r > 0 and 0 0 < 2. (ii) Find polar coordinates (r, e) of the point, where r < 0 and 0 0 < 2.