2\rL[IT2]\r18.¶2021"ü#ýþ'(*ÿ 0@Py=2x-2\rPx2=\r2py?p0Ml,M2,@Py=?yF,@Py!\r"NMFNL\r?1&p'(;\r*+A-@Py./0@PAM2\rP0/M3,@PMM3\r2>2>\r@PyB,&5/7OB'(.\ry=2x-2,\r:;<2\r.x=2py,\r=>?x2-4px+4p=0,\r+Mi(xi,yi),M2(X2,y2),EvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\rA=16P2T6P>0,\rFG%i+x2=4p,\r51^2=4p,\rIJ@Py!"NMFNk\rvHy-2\r2\rLMN4+^^=0,LM”+RS0,\rTU5+R2i=o,\rX1X2\rLM4-(2+g)7YZ=0,?p=4,[\]>0,\r2xrx2\rLMp=4.\r*<;^\rP_`Jx2=8y,\rbcd16%(xi,e),fg,h)0\r(%1%2216,88\r+M3(X3,M)0A(t,2),B(a,2),\r8\r<A,M2,M3klP?.mn=o%0LMpqr\rTs+X2X3T(x+x)=%2-16,\r23\r=>?X2x3-t(X2+X3)=T6,v\r<B,M:i,xklP0y?X1X3-a(xi+x3)=-16,z\rz{|}~X2?XiX2Xa(XiX2+x2X3)=-16x2,\rT16x3-a(16+x2x3)=-16x2,@\r<v?x2x3=t(X2+X3)-16,\r?16xc-16a-ta(x2+x3)+16a=-16x2,\rT16(X2+X3)=at(X2+X3),LMat=16.\rLM&7O^=at+4=16+4=20.