Аналитическая геометрия и линейная алгебра. Умнов А.Е. - 198 стр.

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                                                   º­¯Èς ÒËm‚ä˯Ӻ˹º¹¯º°ˆ¯ÈÓ°ˆmºmˈ©¯Ë²
                                α 21 + α 22      0
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                                            1 2 3
                         |np      A = 2 3 4 Ëjpzqnmv¹lévqutv nxzkvotj·ntqpƀ¹xtqz
                                        3 5 7
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                                                                           Ë°ˆ 
° ‚°ˆ  }ºº¯ÒÓȈӺË ¹¯Ë°ˆÈmãËÓÒË ¹¯ºº­¯ÈÏÈ ¹¯Ëº­¯ÈϺmÈÓÒ« y = Ax
              ξ1                                                     η1
         x = ξ2  È }ºº¯ÒÓȈӺË ¹¯Ë°ˆÈmãËÓÒË º­¯ÈÏÈ  y = η2  ‘ºÈ «¯º 
             ξ3                                                      η3
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                                                                                          ξ1 + 2ξ 2 + 3ξ 3 = 0
                                                                                         
        °Ò°ˆË亮 ãÒÓˮө² ‚¯ÈmÓËÓÒ®                               A     x = 0  ÒãÒ 2ξ1 + 3ξ 2 + 4ξ 3 = 0  º­ËË
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                                                                                          1       2      3
                                ξ1        1
        ¯Ë ËÓÒË }ºˆº¯º® Ë°ˆ  ξ 2 = λ − 2  |ˆ° È ÏÈ}ã ÈËä ˆº «¯º ãÒÓˮӺº
                                ξ3        1
                                                                                                       1
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                1 2 3                   1 2 3
         rg 2 3 4 = rg 0 1 2 = 2 < 3 Ò°ãÈ°ˆºã­ºmäȈ¯Ò©ºˆº­¯ÈÎËÓÒ«
            3 5 7      0 0 0
            

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