Overview: 4 questions will be solved this time.Among them
           ☆4 inequalities

[ 1/4Inequality]
    Assignment:Find the solution set of inequality t <1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         t <1         (1)

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    From inequality(1)：
         t < 1

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    The final solution set is :
         t < 1
[ 2/4Inequality]
    Assignment:Find the solution set of inequality t >5/2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         t >5 / 2         (1)

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    From inequality(1)：
         t ＞ 5/2

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    The final solution set is :
         t ＞ 5/2
[ 3/4Inequality]
    Assignment:Find the solution set of inequality (1-t)4+(1+2*t)2-(1+t) <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1 - t ) * 4 + ( 1 + 2 * t ) * 2 - ( 1 + t ) <0         (1)

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    From inequality(1)：
         t ＞ 5

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    The final solution set is :
         t ＞ 5
[ 4/4Inequality]
    Assignment:Find the solution set of inequality (1-t)16+(1+2*t)4-(1+t) >= 0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1 - t ) * 16 + ( 1 + 2 * t ) * 4 - ( 1 + t ) >= 0         (1)

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    From inequality(1)：
         t ≤ 19/9

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    The final solution set is :
         t ≤ 19/9

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