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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (0.8)^(k-1) >= (9/2*k) .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 0.8 ) ^ ( k - 1 ) >= ( 9 / 2 * k )         (1)

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    From inequality(1)：
         k ≤ 0.262003

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    The final solution set is :
         k ≤ 0.262003

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