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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality a*1.45*1.4*300/(300+406)*2+a*1.45*300/(300+406)+64720*0.2 >64720 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         a * 1.45 * 1.4 * 300 / ( 300 + 406 ) * 2 + a * 1.45 * 300 / ( 300 + 406 ) + 64720 * 0.2 >64720         (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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