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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 1-[1-（137475/17721088）^x]^28520991 ≥80% .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        1 - ( 1 - ( 137475 / 17721088 ) ^ x ) ^ 28520991 ≥80 %         (1)

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    From inequality(1)：
         x ≤ 3.434869

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    The final solution set is :
         x ≤ 3.434869

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