I)=,dd +(I)  1Courier NewSymbol New1Courier New1Courier NewTimes New RomanTimes New Roman1Courier New1Courier New1Courier New1Courier New S FV S FV S FV S FV?/ <```@@@?~~~~~ԱޱޱԱ޿޿ph (((Pdd}d<o p {2%?0?@PN:KTo@`<3333333@???@@@@@@033333??@^ߛOw?̌???wG@X}DTH|@@?@ @@@X}1m[?P;ZX}?@?@?@@dddddddddddddddddddddddddddddddddddddddd d2??h!@Xy@???????XlHlD l 2cos(3t)(r = 2cos(3t); 0.000000 <= t <= 6.2831900.00000;6.28319PPxyzHXT@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @\ @\ @\r = 2cos(3t); 0.000000 <= t <= 6.283190f̅@p a'@,*T