Page 158 - 1300 Math Formulas
P. 158
CHAPTER 7. ANALYTIC GEOMETRY
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Figure 110.
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638. ^åÖäÉ=_ÉíïÉÉå=qïç=iáåÉë=
â − â
ϕ
í~å = O N I==
N+ â â
N O
^ ^ + _ _
Åçë =ϕ N O N O K=
^ + _ ⋅ ^ + _ O O
O
O
O
O
N
N
=
148
