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current location:Mathematical operation > History of Inequality Computation > Answer
    Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2     Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities:
        2 < x + 1 / x         (1)
         x + 1 / x ≤82 / 9         (2)
        From the definition field of divisor
        x ≠ 0        (3 )

    From inequality(1):
         0 < x < 1 或  x > 1
    From inequality(2):
         x ≤ 0 或  1/9 ≤ x ≤ 9
    From inequality(3):
         x < 0 或  x > 0

    From inequalities (1) and (2)
         1/9 ≤ x < 1 或  1 < x ≤ 9     (4)
    From inequalities (3) and (4)
         1/9 ≤ x < 1 或  1 < x ≤ 9     (5)

    The final solution set is :

         1/9 ≤ x < 1 或  1 < x ≤ 9




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