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〖1/1算式〗
    作业：求算式 2/sqrt(3)*500*ln(0.0781/0.05)-370+370*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.0781^2-1) 的值.
    题型：数学计算
    解:
          2/sqrt(3)*500*ln(0.0781/0.05)-370+370*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.0781^2-1)
        =2/sqrt3*500*ln(0.0781/0.05)-370+370*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.0781^2-1)
        =2/sqrt3*500*ln1.562-370+370*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.0781^2-1)
        =2/sqrt3*500*ln1.562-370+370*0.05^2/0.0075*(0.1^2/0.0781^2-1)
        =2/sqrt3*500*ln1.562-370+370*0.05^2/0.0075*0.639449
        =2/1.732051*500*ln1.562-370+370*0.05^2/0.0075*0.639449
        =2/1.732051*500*0.445967-370+370*0.05^2/0.0075*0.639449
        =2/1.732051*500*0.445967-370+370*0.0025/0.0075*0.639449
        =1.1547*500*0.445967-370+370*0.0025/0.0075*0.639449
        =577.35*0.445967-370+370*0.0025/0.0075*0.639449
        =257.479047-370+370*0.0025/0.0075*0.639449
        =257.479047-370+0.925/0.0075*0.639449
        =257.479047-370+123.333333*0.639449
        =257.479047-370+78.865376
        =-112.520953+78.865376
        =-33.655577
    答案:2/sqrt(3)*500*ln(0.0781/0.05)-370+370*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.0781^2-1)=-33.655577

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