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    Current location:Mathematical operation > History of Mathematical Computation > Answer
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           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation 20*lg(30/(2.73*((0.01*(2.73)^2+1)^0.5)*((0.04*(2.73)^2+1)^0.5))) .
    Question type: Mathematical calculation
    Solution:
          20*lg(30/(2.73*((0.01*(2.73)^2+1)^0.5)*((0.04*(2.73)^2+1)^0.5)))
        =20*lg(30/(2.73*((0.01*2.73^2+1)^0.5)*((0.04*(2.73)^2+1)^0.5)))
        =20*lg(30/(2.73*(1.074529^0.5)*((0.04*(2.73)^2+1)^0.5)))
        =20*lg(30/(2.73*1.036594906412336*((0.04*(2.73)^2+1)^0.5)))
        =20*lg(30/(2.73*1.036594906412336*((0.04*2.73^2+1)^0.5)))
        =20*lg(30/(2.73*1.036594906412336*(1.298116^0.5)))
        =20*lg(30/(2.73*1.036594906412336*1.139348936893347))
        =20*lg(30/3.224248)
        =20*lg9.304495
        =20*0.968693
        =19.37386

    Answer:20*lg(30/(2.73*((0.01*(2.73)^2+1)^0.5)*((0.04*(2.73)^2+1)^0.5)))=19.37386


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