Mathematics
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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 (x+7)/(x^(2)-2x+3) ≤1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality:
         ( x + 7 ) / ( x ^ ( 2 ) - 2 * x + 3 ) ≤1         (1)
        From the definition field of divisor
         x ^ ( 2 ) - 2 * x + 3 ≠ 0        (2 )

    From inequality(1):
         x ≤ -1 或  x ≥ 4
    From inequality(2):
         x ∈ R (R为全体实数),即在实数范围内,不等式恒成立!

    From inequalities (1) and (2)
         x ≤ -1 或  x ≥ 4    (3)

    The final solution set is :

         x ≤ -1 或  x ≥ 4




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