I e,dd   1Courier NewSymbol New1Courier New1Courier NewTimes New RomanTimes New Roman1Courier New1Courier New1Courier New1Courier New0:Q<0:Q<0:Q<0:Q<{d< p {??fffffff?2333333?????@@@@@@033333??@^ߛOw?̌???wH:@hHLjLj@@?@ @@@;?@@2??@????????|H|?x|H<&Bԣaaٳ?u@  1-(x^2+y^2) x^2+y^2=1PP2??@SeB׳???????|<d001/2 -sqrt(3)/2seg (0,0) to (1/2,-sqrt(3)/2)PPd2??h!@$$$vۅ:@???????)|*t)$)X+.17#r = .17; 0.000000 <= t <= 5.235990PP2???$$$?SeB׳?????????SeB׳1/2 -sqrt(3)/2pi/4(x,y) = (1/2,-sqrt(3)/2)d2??h!@$$$*k ????????./4X\01.24#r = .24; 0.000000 <= t <= 1.0471982??@?SeB׳?SeB׳???????0 <1/2 sqrt(3)/21/2 -sqrt(3)/2(seg (1/2,sqrt(3)/2) to (1/2,-sqrt(3)/2)2??@d3d3d3d3???????  +d,x+ -sqrt(2)/2 sqrt(2)/2 -sqrt(2)/2 -sqrt(2)/26seg (-sqrt(2)/2,sqrt(2)/2) to (-sqrt(2)/2,-sqrt(2)/2)2??@?SeB׳???????$(,048<Tq3]3p2001/2 sqrt(3)/2seg (0,0) to (1/2,sqrt(3)/2)2???$$$?SeB׳??????????SeB׳?@DHLPT(LĈ1/2 sqrt(3)/2pi/4(x,y) = (1/2,sqrt(3)/2)xyzJXT@&Bԣaaٳ?@@@@@@@@@@@@@@@@@@@@@@@@@@@ H H H x^2+y^2=18f@/c2w\?,seg (0,0) to (1/2,-sqrt(3)/2)(2)/2)ؚ@pc?r = .17; 0.000000 <= t <= 5.235990ؚ?4333333Pԓ?(x,y) = (1/2,-sqrt(3)/2))/2))ؚ?@htuJTr = .24; 0.000000 <= t <= 1.047198ؚ?ҶmR˵ seg (1/2,sqrt(3)/2) to (1/2,-sqrt(3)/2),sqrt(2)/2)ؚ?@htuJJ ?Aseg (-sqrt(2)/2,sqrt(2)/2) to (-sqrt(2)/2,-sqrt(2)/2)ؚ?ҶmR˵|seg (0,0) to (1/2,sqrt(3)/2)2)/2)ؚ?@htuJ4(x,y) = (1/2,sqrt(3)/2)t(2)/2)2))*\ *\6=ؚ?ҶmR˵\\\\ `\%E\|'\%