MATLAB Program: t=0:0.01:2*pi; x=2*cos(t); y=2*sin(t); plot(x,y,'r','linewidth',15); hold on; t=0:0.01:2*pi; x=2*cos(t); y=2*sin(t); fill(x,y,'b'); axis square hold on; t=-1.4:0.1:1.4; y=abs(t); plot(t,y,'r','linewidth',12) hold on; t=-1.4:0.1:1.4; y=-abs(t); plot(t,y,'r','linewidth',12)
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