Overview: 2 questions will be solved this time.Among them
           ☆2 inequalities

[ 1/2Inequality]
    Assignment:Find the solution set of inequality sqrtx <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         sqrt x <0         (1)
        From the definition field of √
        x ≥ 0        (2 )

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    From inequality(1)：
         x < 0
    From inequality(2)：
         x ≥ 0

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    From inequalities (1) and (2)
        x ∈ Φ (Φ is empty)that is, the inequality will never be estatlished within the real number range!    (3)

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    The final solution set is :
        x ∈ Φ (Φ is empty)that is, the inequality will never be estatlished within the real number range!
[ 2/2Inequality]
    Assignment:Find the solution set of inequality 1^x >3 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        1 ^ x >3         (1)

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    From inequality(1)：
        The solution set is empty, that is, within the range of real numbers, the inequality will never be established!

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    The final solution set is :
        The solution set is empty,that is, the inequality will never be estatlished within the real number range.

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