Ответы на вопрос:
А₁ = -1 а₁₀ = 3 = а₁+9d = -1+9d 9d = 4 d = 4/9 a₂ = -1+(4/9) = (-9/9)+(4/9) = -5/9 a₃ = (-5/9)+(4/9) = -1/9 a₄ = (-1/9)+(4/9) = 3/9 = 1/3 a₅ = (3/9)+(4/9) = 7/9 a₆ = (7/9)+(4/9) = 11/9 = 1_2/9 a₇ = (11/9)+(4/9) = 15/9 = 5/3 = 1_2/3 a₈ = (15/9)+(4/9) = 19/9 = 2_1/9 a₉ = (19/9)+(4/9) = 23/9 = 2_5/9 a₁₀ = (23/9)+(4/9) = 27/9 = 3
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