CHAPTER 7. ANALYTIC GEOMETRY====== =
=
Figure 131.
=- m~ê~ãÉíêáÅ=cçêã=
= + +
= + +
= + +
ò ò Åë Åíó ó Äë Äíñ ñ ~ë ~íN N ON N ON N O
I==ïÜÉêÉ=()ñIóIò =~êÉ=íÜÉ=ÅççêÇáå~íÉë=çÑ=~åó=ìåâåçïå=éçáåí=çå=
íÜÉ=äáåÉ=I=íÜÉ=éçáåí=m(ñNIóNIòN)=äáÉë=áå=íÜÉ=éä~åÉI=íÜÉ=îÉÅíçêë=
()~=~åÇ=NIÄNIÅN (~OIÄOIÅO)=~êÉ=é~ê~ääÉä=íç=íÜÉ=éä~åÉK=
=