总述：本次共解1题。其中
           ☆算术计算1题

〖1/1算式〗
    作业：求算式 20*lg√(100×((22.41*3.115156)^2+1)÷3.115156^2÷(0.04*3.115156^2+1)÷(0.25*3.115156^2+1)÷((422.86*3.115156)^2+1)) 的值.
    题型：数学计算
    解:
          20*lg√(100×((22.41*3.115156)^2+1)÷3.115156^2÷(0.04*3.115156^2+1)÷(0.25*3.115156^2+1)÷((422.86*3.115156)^2+1))
        =20*lg√(100×(69.810646^2+1)÷3.115156^2÷(0.04*3.115156^2+1)÷(0.25*3.115156^2+1)÷((422.86*3.115156)^2+1))
        =20*lg√(100×4874.526295÷3.115156^2÷(0.04*3.115156^2+1)÷(0.25*3.115156^2+1)÷((422.86*3.115156)^2+1))
        =20*lg√(100×4874.526295÷3.115156^2÷1.388168÷(0.25*3.115156^2+1)÷((422.86*3.115156)^2+1))
        =20*lg√(100×4874.526295÷3.115156^2÷1.388168÷3.426049÷((422.86*3.115156)^2+1))
        =20*lg√(100×4874.526295÷3.115156^2÷1.388168÷3.426049÷(1317.274866^2+1))
        =20*lg√(100×4874.526295÷3.115156^2÷1.388168÷3.426049÷1735214.072595)
        =20*lg√0.006087
        =20*lg0.078019
        =20*-1.1078
        =-22.156
    答案:20*lg√(100×((22.41*3.115156)^2+1)÷3.115156^2÷(0.04*3.115156^2+1)÷(0.25*3.115156^2+1)÷((422.86*3.115156)^2+1))=-22.156

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