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- Sketch the graph of r² = 4cos2θ in polar coordinates.First part of the question is that convert the following Cartesian coordinates to the corresponding polar coordinates using positive r and negative r. i. (-1, 1) ii. (2,-3) and second part of is that Find the maximum distance of any point on the curve x^2 + 2y^2 + 2xy = 1 from the origin.Determine the angle of rotation necessary to transform the equation in x and y into an equation in X and Y with no XY-term. 6x^2+3 √3xy +3y^2-6=0