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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -(97-0.7*n)/sqrt(0.21*n) >1.65 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -( 97 - 0.7 * n ) / sqrt ( 0.21 * n ) >1.65         (1)
        From the definition field of √
         0.21 * x ≥ 0        (2 )

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    From inequality(1)：
         n < 0 或  n ＞ 151.883667
    From inequality(2)：
         n ≥ 0

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    From inequalities (1) and (2)
         n ＞ 151.883667    (3)

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    The final solution set is :
         n ＞ 151.883667

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