The Cartesian coordinates of a point are given. (i) Find polar coordinates (r, ) of the point,
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(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.
(a) 2, -2
(b) -1, √3
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