Аналитическая геометрия и линейная алгебра. Умнов А.Е. - 80 стр.

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                              ÒãÒ Ax + By + C = 0 , A + B > 0 ˆºË°ˆ  G ( x , y ) = Ax + By + C 
                              
                              
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                                                    , τ ∈[0,2π ) ˆºË°ˆ                           , τ ∈[0,2π ) 
                                  y = y 0 + R sin τ                          Fy (τ ) = y 0 + R sin τ
                                 
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                                 ÙiË}ȯˆºmãÒ°ˆµ                         x 3 + y 3 − xy = 0 
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