Find all points (if any) of horizontal and vertical tangency to the curve. Use a graphing utility to confirm your results. (Order your answers from smallest to largest x, then from smallest to largest y. If an answer does not exist, enter DNE.) x = cos 0, y = 2 sin 2e Horizontal tangents (x, y) = (x, y) = (x, y) = (x, y) = Vertical tangents (x, y) = -(C (x, y) =

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