Аналитическая геометрия и линейная алгебра. Умнов А.Е. - 181 стр.

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                                mºӂ Á‚Ó}Ò 
                            
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    ~ÈÈÈ                bvrjojz·zvvwnéjzvé€kwéqunéj}°°q°¹ks¹ízx¹sqtnpt€uq
    
              
              
    ~ÈÈÈ                ‰ks¹nzx¹ sq sqtnpt€u vwnéjzvé A   xzjk¹qp rj lvuy ësnuntzy
                    x ∈ Λ kxvvzknzxzkqn{qrxqévkjtt€pësnuntz a ∈ Λ "
              
              
    cËËÓÒË              p°ãÒ a = o ˆº A ãÒÓˮө®º¹Ë¯Èˆº¯Ë®°ˆm‚ Ò®m Λ 
              
              
              
              
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    |¹¯ËËãËÓÒË           ÒÓˮөË              º¹Ë¯Èˆº¯©              A      Ò      B     ÓÈÏ©mÈ ˆ°«               éjkt€uq            Ë°ãÒ
    
                           ∀x ∈ Λ : Aˆ x = Bˆ x cÈmËÓ°ˆmºº¹Ë¯Èˆº¯ºmº­ºÏÓÈÈˈ°«}È} Aˆ = Bˆ 
                           
                           fyuuvpãÒÓˮө²º¹Ë¯Èˆº¯ºm A Ò B ÓÈÏ©mÈˈ°«º¹Ë¯Èˆº¯ C º­ºÏÓÈ
                           ÈËä©® A + B  °ˆÈm«Ò® }ÈÎºä‚ ªãËäËӈ‚ ãÒÓˮӺº ¹¯º°ˆ¯ÈÓ°ˆmÈ
                                                           + Bx
                           x ∈ Λ m°ººˆmˈ°ˆmÒ˪ãËäËӈ Ax   
              
              
    ËääÈ                 v‚ääÈm‚²ãÒÓˮө²º¹Ë¯Èˆº¯ºm«mã«Ëˆ°«ãÒÓˮө亹˯Ȉº¯ºä
    
           
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           ‚°ˆ x, y, z ∈ Λ Ò x = λy + µz  È C = A + B ˆºÈ
           
                                        C ( λ y + µz ) = A ( λ y + µ z ) + B ( λ y + µ z ) =
                            = λ Ay + µA z + λB y + µB z =                      
                                                        = λ ( Ay + B y ) + µ ( A z + B z ) = λ Cy
                                                                                                    + µC z .
      
      ËääȺ}ÈÏÈÓÈ
              
              

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