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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -sqrt(x+1) <2x+1     Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -sqrt ( x + 1 ) <2 * x + 1         (1)
        From the definition field of √
         x + 1 ≥ 0        (2 )
        2 * x + 1 < sqrt ( x + 1 )         (3)
        From the definition field of √
         x + 1 ≥ 0        (4 )

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    From inequality(1)：
         x ＞ -3/4
    From inequality(2)：
         x ≥ -1
    From inequality(3)：
         x < 0
    From inequality(4)：
         x ≥ -1

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    From inequalities (1) and (2)
         x ＞ -3/4    (5)
    From inequalities (3) and (5)
         -3/4 < x < 0     (6)
    From inequalities (4) and (6)
         -3/4 < x < 0     (7)

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    The final solution set is :
         -3/4 < x < 0

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