Is,dd   1Courier NewSymbol New1Courier New1Courier NewTimes New RomanTimes New Roman1Courier New1Courier New1Courier New1Courier New0:Q<0:Q<0:Q<0:Q<}d< p {fffffff@?3333333@3333333@4333333??X??@@@@@@033333??@^ߛOw?̌???uH:@0HDjDj@@?@ @@@%ħW1?@@d2??h!@$$$@???????@1ޥ?$3P2`((<4tcos(t)0(x,y) = (t,cos(t)); -4.000000 <= t <= 10.000000PPd2??h!@$$$@)\(\@???????)\(\@Bʊ~?$(,0,688Dp-tcos(t)/(x,y) = (-t,cos(t)); 4.000000 <= t <= 4.230000d2??h!@$$$@???????@Bʊ~?   S$t -cos(2t)2(x,y) = (t,-cos(2t)); -4.000000 <= t <= 10.0000002??h!@$$$@)\(\@???????)\(\@Bʊ~? PdVX(Z|-t -cos(2t)1(x,y) = (-t,-cos(2t)); 4.000000 <= t <= 4.230000tyzJXT@@@@@@@@@@@@@@@@@@@@@@@@@@@@ H H H(x,y) = (t,cos(t)); -4.000000 <= t <= 10.000000N]@DIr*?H(x,y) = (-t,cos(t)); 4.000000 <= t <= 4.230000N]3333333@'֔(x,y) = (t,-cos(2t)); -4.000000 <= t <= 13.2000000N]@fffffff;1?(x,y) = (-t,-cos(2t)); 4.000000 <= t <= 4.2300000N]@fffffff%_?