Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality x^2-5x+4 > ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
         x ^ 2 - 5 * x + 4 >         (1)
         ≥0         (2)

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    From inequality(1)：
         x < 1 或  x ＞ 4
    From inequality(2)：
         x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!

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    From inequalities (1) and (2)
         x < 1 或  x ＞ 4    (3)

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    The final solution set is :
         x < 1 或  x ＞ 4

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