Аналитическая геометрия. Шурыгин В.В. - 57 стр.

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g
ij
(x
i
x
i
0
)N
j
= 0.
{O; e
1
= i, e
2
= j} g
ij
= (e
i
, e
j
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ij
N{A; B} M(x; y) M
0
(x
0
; y
0
)
A(x x
0
) + B(y y
0
) = 0.
Ax + By + C = 0
`
` (43)
N{A; B}
a{−B; A}
{A
1
; A
2
}
ξ : V
2
R V
2
ξ ξ(v) = (N, v)
` E
2
dist (M
1
, `) M
1
E
2
`
1.
M
0
a `
M
`
M
0
`
a{x
a
; y
a
} dist (M
1
, `)
a
M
0
M
1
  { 1--3L0,686N 236b,*,0* ‚Ú^ƒ .30,0;6*8 b0L
                              gij (xi − xi0 )N j = 0.                                   ‚Ú•ƒ
¼/70 {O; e = i, e = j} · -38-,-3;03-b6,,M 3*.*3\ 8- g = (e , e ) = δ
‚/0;b-7 P3-,*1*36ƒ\ 0 b 1--3L0,686N N{A; B} \ M (x; y) \ M (x ; y ) 236b,*K
          1       2                                                ij           i   j     ij


,0* ‚Ú•ƒ .30,0;6*8 b0L                                             0    0       0




                         A(x − x ) + B(y − y ) = 0.
                                   0                       0
                                                                         ‚Ú]ƒ
Ç6/13b69 /1-+10 b ‚Ú]ƒ\ .30N-L0; 1 -+}*;2 236b,*,0J
                             Ax + By + C = 0                             ‚Úƃ
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;-M b 6OO0,,-; .3-/836,/8b*\ 6 0;*,,-\ -,6 9b79*8/9 .63-M 1--3L0,68
                               1       2


70,*M,-M O2,1 00 ξ : V → R ,6 b*18-3,-; .3-/836,/8b* V = { /72)6*
*b170L-b-M .7-/1-/80 ~86 O2,1 09 ξ 0;**8 b0L ξ(v) = (N, v) = H-L3-+,**
                          2                                                 2


~8-8 b-.3-/ +2L*8 -+/2|L68?/9 .30 36//;-83*,00 .39;N 0 .7-/1-/8*M b
83*N;*3,-; .3-/836,/8b* =
Z± àͶ¶zu´XWx uz zuñyW wu ³T´µuÌ Z
{ [6b0/0;-/80 -8 8-:-\ 161 [6L6,6 .39;69 ` ,6 *b170L-b-M .7-/1-/80 E \
36//8-9,0* dist (M , `) -8 8-)10 M ∈ E L- ` ;-|*8 +8? ,6ML*,- /7*L2JK                    2

                      1
                              }0;0 /.-/-+6;0†  1       2

          M                           H3*L.-7-|0;\ )8- .39;69 ` [6L6,6
                              8-)1-M M ∈ ` 0 ,6.36b79J}0; b*18-3-;
              •
                                 1.

                              a{x ; y } = „-:L6 36//8-9,0* dist (M , `) ,6N-K
                                                       0


  •                           L08/9 161 b/-86 .63677*7-:36;;6\ .-/83-K
                                           a       a                            1

   M                     `
                              *,,-:-  ,6  b*18-36N   0 −−−→ ‚/; 30/ Æãƒ†
                 Æã
            a
      0
            0/
           Ç = =                                   a   MM      0 = =
                                                                   1

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