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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (1.4+2t+0.8*8.6)*(7.9t+94.21)/(11.3+t)/86 >= 1.6 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1.4 + 2 * t + 0.8 * 8.6 ) * ( 7.9 * t + 94.21 ) / ( 11.3 + t ) / 86 >= 1.6         (1)
        From the definition field of divisor
         11.3 + x ≠ 0        (2 )

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    From inequality(1)：
         -11.588264 ≤ t ≤ -11.3 或  t ≥ √4477051/500
    From inequality(2)：
         t < -113/10 或  t ＞ -113/10

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    From inequalities (1) and (2)
         -11.588264 ≤ t < -113/10 或  t ≥ √4477051/500    (3)

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    The final solution set is :
         -11.588264 ≤ t < -113/10 或  t ≥ √4477051/500

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