Задачи на закрепление:

1) f(x) = x₁ – x₂ + 1  min 2) f(x) = 4 x₁ + x₂  min

2 x₁ + x₂ + 3 x₃ = 1 3 x₁ + x₂ = 3,

x₁ – 3 x₂ + x₃ = – 3 4 x₁ + 3 x₂ – x₃ = 6,

x₁ + 11 x₂ + 3 x₃ = 11 x₁ + 2 x₂ + x₄ = 4,

x_i  0, i = 1,…,3. х_i ³ 0, i = 1,…,4.

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