Page 157 - 1300 Math Formulas
P. 157
CHAPTER 7. ANALYTIC GEOMETRY
636. m~ê~ääÉä=iáåÉë=
qïç=äáåÉë= ó = â N ñ + Ä =~åÇ= ó = â O ñ + Ä =~êÉ=é~ê~ääÉä=áÑ==
O
N
â = â K=
N O
qïç= äáåÉë= ^ + _ ó + ` = M =~åÇ= ^ ñ + _ ó + ` = M=~êÉ=
ñ
N N N O O O
é~ê~ääÉä=áÑ=
^ N = _ N K=
^ O _ O
=
=
=
Figure 109.
=
637. mÉêéÉåÇáÅìä~ê=iáåÉë=
qïç=äáåÉë= ó = â N ñ + Ä =~åÇ= ó = â O ñ + Ä =~êÉ=éÉêéÉåÇáÅìä~ê=áÑ==
O
N
â = − N =çêI=Éèìáî~äÉåíäóI= â = − NK=
â
O
â N O
N
qïç= äáåÉë= ^ + _ N ó + ` = M =~åÇ= ^ O ñ + _ O ó + ` = M=~êÉ=
ñ
N
O
N
éÉêéÉåÇáÅìä~ê=áÑ=
^ N ^ + _ N _ = M K=
O
O
=
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