Plot the Lissajous figure defined by x cos 2t, y sin 7t, 0 t 2 Explain why this is a closed curve even though its graph does not look closed

Question: Plot the Lissajous figure defined by x = cos 2t, y = sin 7t, 0 t 2. Explain why this is a closed

Plot the Lissajous figure defined by x = cos 2t, y = sin 7t, 0 ≤ t ≤ 2π. Explain why this is a closed curve even though its graph does not look closed.

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