Page 144 - 1300 Math Formulas
P. 144
CHAPTER 7. ANALYTIC GEOMETRY
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Figure 91.
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614. fåÅÉåíÉê=EfåíÉêëÉÅíáçå=çÑ=^åÖäÉ=_áëÉÅíçêëF=çÑ=~=qêá~åÖäÉ=
~ñ + Äñ + Åñ ~ó + Äó + Åó
ñ = N O P I= ó = N O P I==
M
~ + Ä+ Å M ~ + Ä+ Å
ïÜÉêÉ=~ = _` I= Ä = `^ I=Å = ^_K==
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Figure 92.
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