Mathematics
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    20×lg0.297
    20×lg0.451
    20×lg1.143
    2260.763/(1000*974.7)
    (16.7*1000*0.05*974.7)/360=
    (736.728*(10^6))/(16.7*1000*(974.7^2))
    arctan1.116
    (115√3)÷35.64
    42.56cos(70-36.87)
    arccos0.8
    42.56cos(70-48.16)
    27.2cos(70-48.16)
    arcsin0.745
    arccos0.667
    √(13.472^2+15.035^2)
    13.472^2
    16sin70
    5.47232+8
    16cos70
    16cos70

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