Аналитическая геометрия. Часть III. Многомерные пространства. Гиперповерхности второго порядка. Шурыгин В.В. - 3 стр.

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V
n
A
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m (m ) A
n
L
m
M
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π = {M A
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m {M
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ψ
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(π, L
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AB =
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                                   −−−→
                        π = {M ∈ An | M0 M ∈ Lm }.               •Š‹
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                                    £—™œ¤œšY[¥˜š›—^ M ∈ {M , L } ⇐⇒ −      −−→
                                                                         M1 M ∈
                                    Lm ⇐⇒ M0 M1 +M1 M ∈ Lm •751 151 M0 M1 ∈
                                                                1 m
               M1                             −−−→ −−−→                  −−−→
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                     M              Lm 0 (Vn , +) F 932..5 .- /6-“*,0‡ ⇐⇒
                                    M0 M ∈ Lm ⇐⇒ M ∈ {M0 , Lm } < 
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                    m   π
                                                     −→ −−−→             −→
                                                    M0 A, M0 B ∈ Lm =⇒ AB =
                                    M0 B − M0 A ∈ Lm <
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