F,dd   1Courier New1Symbol New1Courier New1Courier NewTimes New RomanTimes New Roman1Courier New1Courier New1Courier New1Courier NewLYPLYPLYPLYP{ d< p D ]UhR@W@?M@Pkȇ<{@x% ???@]} @8N @  @h;Oh;Oh;Oh;O@h;O@h;O@033333??@^ߛOw?HzG???` }:@[[@@?@ @@@?@@/2??h!@$$$Xy@@L~??Xn= yk= 27LH@p= @p= @???hij klmnoOlڗΗ&8` sqrt(u^2+a)ucos(t)usin(t)*x = sqrt(u^2+a); y = ucos(t); z = usin(t)rPrP/2??h!@$$$@@أp= ףp= ?أp= أp= @ףp= ?أp= @???9:abcded荚 L:ubtx = u; y = b; z = t/2??h!@$$$@@ףp= أp= أp= ףp= أp= @أp= @???8($; $(,0f|P[Ycutx = c; y = u; z = t/2??h!@$$$@@أp= أp= (\أp= @أp= @(\???dģhţlƣpǣtȣxɣ|ʣP`ߟ\Dtudx = t; y = u; z = d/2??h!@$$$Xy@@27LHXn= yk= L~?p= @p= @???ptx|TȠب3'' -sqrt(u^2+a)ucos(t)usin(t)+x = -sqrt(u^2+a); y = ucos(t); z = usin(t)xyzGzףp= ?ףp= (\JXT@@@@@@@@@@@@@@@@@@@@@@@@@@@@   x = sqrt(u^2+a); y = ucos(t); z = usin(t)<"@p\H@x = u; y = b; z = t<" ޾5@H&~%m@LƠx = c; y = u; z = t<"T5@0(~@s=@0 x = t; y = u; z = d<"QV@cŒk@Mx = -sqrt(u^2+a); y = ucos(t); z = usin(t) <"@?M@Pkȇ@J4@