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Plot (pi/30)MathieuC[160/225,80/225, 7.5t], plot (10/225)*Cos[15*t]-(10/225), 0<t<5
Plot (pi/30)MathieuC[160/225,80/225, 7.5t], plot (10/225)*Cos[15*t]-(10/225), 0<t<5
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