I7A:=,dd +(I)  1Courier NewSymbol New1Courier New1Courier NewTimes New RomanTimes New Romanmbolsnr1Courier New1Courier New1Courier New1Courier NewXhVXhVXhVXhV?/ <```@@@?~~~~~ԱޱޱԱ޿޿ph (((Pdd}d<_ p {2 ?@fffffff@̜̜@?X??@@@@@@033333??@^ߛOw?hfffff???98Ic@ $V@@?@ @@@u_ХI9P?W,w?@?@?@@dddddddddddddddddddddddddddddddddddddddd 2???$$$h!3333333h!3333333@??????8t֪?PFx8HE-pi4.85-pi-4.85seg (-pi/2,6) to (-pi/2,-6)PP2???$$$h!@3333333h!@3333333@??????8t֪?F G H I J L M   P& wpi4.85pi-4.85seg (pi/2,6) to (pi/2,-6)PP2???$$$h!@3333333h!@3333333@??????8t֪? .$/(0,1024384MN $ 2pi4.852pi-4.85seg (3pi/2,6) to (3pi/2,-6)PPd2??@q= ףp=@$$$@q= ףp=@???????q= ףp=@wm?oT(` ljl P""X#`##"#-t1/cos(-t-pi/2)3(x,y) = (-t,1/cos(t)); -8.250000 <= t <= -8.0610005.824;5.82d2??3333333@$$$3333333@???????3333333@wm?7TX\8L[/`0+#-#D1#x1#1#tsin(t)/(x,y) = (t,cos(t)); 0.000000 <= t <= 10.5000009.2 0.00000;9.2d2??@$$$@???????@wm?7tv$ ġā<0o81`P4#X6#;#<#<#-t-sin(t)0(x,y) = (-t,cos(-t)); 0.000000 <= t <= 4.2000006 0.00000;6d2??@q= ףp=@$$$@q= ףp=@???????q= ףp=@wm?o|^<*Ю8`863ȴ!C0%1%`5%-t1/cos(-t-pi/2)3(x,y) = (-t,1/cos(t)); -8.250000 <= t <= -8.0610005.824;5.82d2??fwS(\$$$fwS(\???????(\wm?.Q 8|<8X )( Ⱥ N#N#(Q#t1/cos(t-pi/2)1(x,y) = (t,1/cos(t)); -1.350000 <= t <= 1.380000 1.36-pi/2-1.35000-pi/2;1.36-pi/2d2??03'"^?Kx@$$$03'"^?Kx@???????Kx@wm?8d{|0aD(vpV#X#`!!Ў!t1/cos(t-pi/2)0(x,y) = (t,1/cos(t)); 1.800000 <= t <= 4.511000 4.5-pi/21.80000-pi/2;4.5-pi/2d2??l{D@J%6@$$$l{D@J%6@???????J%6@wm?̵! l28l$Ȟ8!b"(c">%t1/cos(t-pi/2)0(x,y) = (t,1/cos(t)); 4.950000 <= t <= 7.662000 7.64-pi/24.95000-pi/2;7.64-pi/2d2??3333333Kors$$$3333333Kors???????Korswm?|!DO dC%hD%lE%pF%tG%nxH%J%Y%$Z%`\%t1/cos(t-pi/2)2(x,y) = (t,1/cos(t)); -4.200000 <= t <= -1.775000 -1.78-pi/2-4.1;-1.78-pi/2d2??hf Х(\$$$hf Х(\???????(\wm?@a%Db%Hc%Ld%Pe%Tf%u"g%h%4k%8%l%|%-t-1/cos(t-pi/2)1(x,y) = (-t,1/cos(t)); 1.300000 <= t <= 1.380000 1.36000-pi/21.30000-pi/2;1.36-pi/2d2??9H@Q@$$$9H@Q@???????Q@wm?2"8%<%@%D%H%L% "T%\%`%%%-t-1/cos(t-pi/2)1(x,y) = (-t,1/cos(t)); 4.150000 <= t <= 4.2500002.934.15000-pi/2;2.93d2??M!Kors$$$M!Kors???????Korswm?^".$`%d%h%l%p%\#%%%%%%-t-1/cos(t-pi/2)3(x,y) = (-t,1/cos(t)); -1.900000 <= t <= -1.774000 -1.78-pi/2-1.90000-pi/2;-1.78-pi/2d2??3c)wO$$$3c)wO???????Owm?n#$X;$\<$`=$d>$h?$$@$A$HD$ Ԑ  -t-1/cos(t-pi/2)3(x,y) = (-t,1/cos(t)); -5.100000 <= t <= -4.904000 -4.93-pi/2-5.1-pi/2;-4.93-pi/2d2??f6 ޽o"@һގ@$$$f6 ޽o"@һގ@???????һގ@wm?#      #  ( !(!d!t1/cos(t-pi/2)1(x,y) = (t,1/cos(t)); 8.200000 <= t <= 10.50000010.50000-pi/28.20000-pi/2;10.50000-pi/2tyzJXT@@@@@@@@@@@@@@@@@@@@@@@@@@@@RW$RW$RW$segment (-pi,4.85)<-->(-pi,-4.85)5ykA@0%Y$Ț?1Courier New :segment (pi,4.85)<-->(pi,-4.85)J 5ykA@ ki?1Courier New :segment (2pi,4.85)<-->(2pi,-4.85)5ykA@{G!?1Courier New <(x,y) = (-t,1/cos(-t-pi/2)); 4 <= t <= 5.827-pi/2.06100-p5ykA3333333@x1Courier New =(x,y) = (t,sin(t)); 0.00000 <= t <= 9.200000(5ykA3333333@HzG܎;w1Courier New X>(x,y) = (-t,-sin(t)); 0.00000 <= t <= 620000= 4.20000-pi/2(5ykA3333333@HzG~9` 21Courier New ԫ"(x,y) = (-t,1/cos(-t-pi/2)); 4 <= t <= 5.82(iv(ivJcY#hJcY#h1Courier New %(x,y) = (t,1/cos(t-pi/2)); -1.35000-pi/2 <= t <= 1.36-pi/2(iv(ivR'eR'e1Courier New ?(x,y) = (t,1/cos(t-pi/2)); 1.80000-pi/2 <= t <= 4.5-pi/22(iv(ivJcY#hJcY#h1Courier New ,$ (x,y) = (t,1/cos(t-pi/2)); 4.95000-pi/2 <= t <= 7.64-pi/2{0t?Y?w|Rn*@w|Rn*@1Courier New 0< (x,y) = (t,1/cos(t-pi/2)); -4.1 <= t <= -1.78-pi/2-pi/2{0t?Y?w|Rn*@w|Rn*@1Courier New ! (x,y) = (-t,-1/cos(t-pi/2)); 1.30000-pi/2 <= t <= 1.36-pi/2{0t?Y?4n@4n@1Courier New ;! (x,y) = (-t,-1/cos(t-pi/2)); 4.15000-pi/2 <= t <= 2.93?{0t?Y?p!u@p!u@1Courier New z! (x,y) = (-t,-1/cos(t-pi/2)); -1.90000-pi/2 <= t <= -1.78-pi/{0t?Y?Y&*?Y&*?1Courier New $(x,y) = (-t,-1/cos(t-pi/2)); -5.1-pi/2 <= t <= -4.93-pi/2<{0t?Y?8}?8}?1Courier New $(x,y) = (t,1/cos(t-pi/2)); 8.20000-pi/2 <= t <= 10.50000-pi/{0t?Y?1Courier New @@@h!@