3lnx+10/x^3＝3.408
    x^3/2×x^-3/2
    x^3/2
    x^-3+3lnx＝5.336
    4x^3+2x^2-x-3=0
    4x^3+2x^2-x-3=0
    2x+1=2
    x^3-9x^2+(16-8sqrt2)x-32=0
    2x+1=2
    arcsin x+x*(1-x^2)^0.5=4.712
    arcsin x+x*(1-x^2)^0.5=-1.04
    arcsin x+x*(1-x^2)^0.5=0.5235
    asin x+x*(1-x^2)^0.5=0.5235
    asin x+x*sqrt(1-x^2)=0.5235
    asin x+x*sqrt(1-x^2)=0.5235
    X-(X*0.1542)=2016121
    X-(X*0.3)=20409892
    X-(X*0.3)=2000
    3.5X＋X＝18
    1/x²+3/x

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