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plot x=(4cos(t)^(2)-4sin(t)^(2)+2cos(t)), y=(2sin(t)+8cos(t)sin(t)) for t=0 to 2pi
plot x=(4cos(t)^(2)-4sin(t)^(2)+2cos(t)), y=(2sin(t)+8cos(t)sin(t)) for t=0 to 2pi
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