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parametric plot \sqrt{2}/2 +(3\sqrt{2})/2 cosx, (3\sqrt{2})/2 sinx, x from 0 to 2\pi,
parametric plot \sqrt{2}/2 +(3\sqrt{2})/2 cosx, (3\sqrt{2})/2 sinx, x from 0 to 2\pi,
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