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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 3-a-0.7-0.45*(sqrt(abs(0.9+a))-sqrt(0.9)) <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        3 - a - 0.7 - 0.45 * ( sqrt ( abs ( 0.9 + a ) ) - sqrt ( 0.9 ) ) <0         (1)
        From the definition field of √
         abs ( 0.9 + x ) ≥ 0        (2 )

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    From inequality(1)：
         a ＞ 2.200711
    From inequality(2)：
         a ≤ -9/10 或  -9/10 ≤ a ≤ -9/10 或  a ≥ -9/10

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    From inequalities (1) and (2)
         a ＞ 2.200711    (3)

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    The final solution set is :
         a ＞ 2.200711

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