CHAPTER 7. ANALYTIC GEOMETRY
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Figure 149.
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712. oÉ~ä=fåíÉêëÉÅíáåÖ=mä~åÉë=E`~ëÉ=NOF=
ñ O − ó O = M =
~ O Ä O
=
713. fã~Öáå~êó=fåíÉêëÉÅíáåÖ=mä~åÉë=E`~ëÉ=NPF=
ñ O + ó O = M=
~ O Ä O
=
714. m~ê~ÄçäáÅ=`óäáåÇÉê=E`~ëÉ=NQF=
ñ O − ó = M =
~ O
=
187