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Parametric {x(t) = (1 - e^(-t))cos(t), y(t) = (1 - e^(-t))sin(t)} with 2pi > t > 0
Parametric {x(t) = (1 - e^(-t))cos(t), y(t) = (1 - e^(-t))sin(t)} with 2pi > t > 0
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