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〖1/1算式〗
    作业：求算式 2/sqrt(3)*500*ln(0.0721/0.05)-350+350*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.0721^2-1) 的值.
    题型：数学计算
    解:
          2/sqrt(3)*500*ln(0.0721/0.05)-350+350*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.0721^2-1)
        =2/sqrt3*500*ln(0.0721/0.05)-350+350*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.0721^2-1)
        =2/sqrt3*500*ln1.442-350+350*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.0721^2-1)
        =2/sqrt3*500*ln1.442-350+350*0.05^2/0.0075*(0.1^2/0.0721^2-1)
        =2/sqrt3*500*ln1.442-350+350*0.05^2/0.0075*0.923665
        =2/1.732051*500*ln1.442-350+350*0.05^2/0.0075*0.923665
        =2/1.732051*500*0.366031-350+350*0.05^2/0.0075*0.923665
        =2/1.732051*500*0.366031-350+350*0.0025/0.0075*0.923665
        =1.1547*500*0.366031-350+350*0.0025/0.0075*0.923665
        =577.35*0.366031-350+350*0.0025/0.0075*0.923665
        =211.327998-350+350*0.0025/0.0075*0.923665
        =211.327998-350+0.875/0.0075*0.923665
        =211.327998-350+116.666667*0.923665
        =211.327998-350+107.760917
        =-138.672002+107.760917
        =-30.911085
    答案:2/sqrt(3)*500*ln(0.0721/0.05)-350+350*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.0721^2-1)=-30.911085

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