Page 185 - 1300 Math Formulas

CHAPTER 7. ANALYTIC GEOMETRY

_ ` ` ^ ^ _
~ = N N I= Ä = N N I=Å = N N I==
_ O ` O ` O ^ O ^ O _ O

a ` a _
Ä N N − Å N N
a ` a _
ñ = O ~ + O Ä + Å O O O I==
N
O
O
a ^ a `
Å N N − ~ N N
a ^ a `
ó = O ~ + O Ä + Å O O O I==
N
O
O
a _ a ^
~ N N − Ä N N
a _ a ^
ò = O ~ + Ä + Å O O O K==
O
N
O
O
=
=
=
7.10 Straight Line in Space
=
mçáåí=ÅççêÇáå~íÉëW=ñI=óI=òI= ñ I= ó I=ò I=£=
N
N
N
α
γ
β
aáêÉÅíáçå=ÅçëáåÉëW=Åçë I=Åçë I=Åçë =
oÉ~ä=åìãÄÉêëW=^I=_I=`I=aI=~I=ÄI=ÅI=~I=~I=íI=£==
r r r N O
aáêÉÅíáçå=îÉÅíçêë=çÑ=~=äáåÉW= ë I= ë I= ë =
r N O
kçêã~ä=îÉÅíçê=íç=~=éä~åÉW=å=
^åÖäÉ=ÄÉíïÉÉå=íïç=äáåÉëW=ϕ =
=
690. mçáåí=aáêÉÅíáçå=cçêã=çÑ=íÜÉ=bèì~íáçå=çÑ=~=iáåÉ==
ñ − ñ N = ó − ó N = ò − ò N I==
~ Ä Å
ïÜÉêÉ=íÜÉ=éçáåí= ( Iñm N N ó N ò I N )=äáÉë=çå=íÜÉ=äáåÉI=~åÇ=( ÄI~ ) Å I =áë=
íÜÉ=ÇáêÉÅíáçå=îÉÅíçê=çÑ=íÜÉ=äáåÉK==
=

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