I F,dd   1Courier New1Symbol New1Courier New1Courier NewTimes New RomanTimes New Roman1Courier New1Courier New1Courier New1Courier New.VVV}d  d<  ap ;K7A@;K7A;K7A@4t? 4t? @;KB.?h!??@@@@@@033333??@^ߛOw?̌???l(_:w l@@?@ @@@? 2??@tU Jj?????????4ʣ8ˣ<̣@ͣDΣHϣLУpRrcos(t)rsin(t)(x,y) = (rcos(t),rsin(t))ȣ 2??@etU?gJj?????????@h(t,rsin(t))n(t))N+G~rw@fYeYe'p'p@(  (t,rsin(wt))n(wt))+G~rw@fYeYeFʌG@y = rsin(x)+G~rw@fYeYeTo"A:@y = rsin(wx)+G~rw@fYeYeᗌ:@seg (0,0) to (cos(t),sin(t)) DP+G~rw;K7A@4t? l$4@\( r = 1; 0.000000 <= t <= 6.283190) /#O,?+G~rw;K7A@4t? X[?DPDP