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CHAPTER 7. ANALYTIC GEOMETRY
611. aáîáÇáåÖ=~=iáåÉ=pÉÖãÉåí=áå=íÜÉ=o~íáç=λ =
ñ M = ñ N + λñ O I= ó M = ó N + λó O I==
N + λ N + λ
λ = ^` I= ≠λ − NK=
`_
=
======= =
=
Figure 89.
=
=
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