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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (y＾-5y+6)/(y＾2+3y+2) <3 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( y ^ -5 * y + 6 ) / ( y ^ 2 + 3 * y + 2 ) <3         (1)
        From the definition field of divisor
         x ^ 2 + 3 * x + 2 ≠ 0        (2 )

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    From inequality(1)：
         y < -3.001369 或  -2 < y < -1 或  y ＞ 0.620611
    From inequality(2)：
         y < -2 或  -2 < y < -1 或  y ＞ -1

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    From inequalities (1) and (2)
         y < -3.001369 或  -2 < y < -1 或  y ＞ 0.620611    (3)

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    The final solution set is :
         y < -3.001369 或  -2 < y < -1 或  y ＞ 0.620611

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