(1-n/50000)/n*206<=(9.5*0.1/1.96)^2
    1.96*sqrt((1-n/50000)/n*206)<=9.5*0.1
    1.96*sqrt((1-n/50000)/n*206)<=0.1*9.5
    6830.42+544.59n+((155.03n+22.01n^2)/(240.54+66.03n))*(69.83n+11n^2)-1.25*（747.78*（3.86+n)+(267.21n+6.23n^2)*(911.91n+12.49n^2)/(1603.23+37.47n))≥0
    6830.42+544.59n+((155.03n+22.01n^2)/(240.54+66.03n))*(45.59n+11n^2)-1.25*（747.78*（3.86+n)+(267.21n+6.23n^2)*(911.91n+12.49n^2)/(1603.23+37.47n))≥0
    6830.42+544.59n+((177.05n+22.01n^2)/(273.57+66.03n))*(45.59n+11n^2)-1.25*（747.78*（3.86+n)+(267.21n+6.23n^2)*(911.91n+12.49n^2)/(1603.23+37.47n))≥0
    6711.26+479.5n+((223.62n+22.01n^2)/(347.97+66.03n))*(58n+11n^2)-1.25*（747.78*（3.86+n)+(267.21n+6.23n^2)*(911.91n+12.49n^2)/(1603.23+37.47n))≥0
    x-1<2
    1833.03*（2.36+n)+267.21n+6.246n^2+128.55*(12.7-1.5)+565.66*(12.7-5.5)-1.25*(747.78*(3.86+n)+((445.95n+22.01n^2)/(676.92+66.03n))*(112.82n+11n^2))≥0
    1833.03*（2.36+n)+267.21n+6.246n^2+128055*(12.7-1.5)+565.66*(12.7-5.5)-1.25*(747.78*(3.86+n)+((445.95n+22.01n^2)/(676.92+66.03n))*(112.82n+11n^2)≥0
    5915117.09*0.36/365X>=740417.81
    [x+1]>0
    （3x-6）3-6>18
    e^(x-2)-2/x＞0
    e^(x-2)-2/x＜0
    a∧2+1/2a+5<0
    280e+(6-e)220<1530
     -3x^2+6x >0 -3x^2+6x <0
    -3x^2+6x>0
    4^k/!(k)*e(-4) >0.99

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