al pha =aFor a in S, we denote its ith com pon- equivalently, we have = (a¹; : : : ; an) This will always be assumed without being me again and again. We also put m_a= = a1 + + …....

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Q: =) x1 + x2 + 2x3 + 2x1 + 3x2 + 6x3 + 3x2 + 4х3 + Х2 — Хз X3 - X1 6x4 = 11 19x4 = 36 15 28 6x4 = -12

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