Аналитическая геометрия и линейная алгебра. Умнов А.Е. - 209 стр.

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                              = κ 1λ 1 f 1 + κ 2 λ 2 f 2 +...+κ m λ m f m + κ m+1λ m+1 f m+1 = o .
        
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        ÓËÏÈmÒ°Ò亰ˆ ªãËäËӈºm f 1 , f 2 , ... , f m , f m+1 
        
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