Mathematics
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    (8,2) (6,1) (5,0) (1,0)
    arcsin0.5
    sin30
    sin60
    arctan1
    1/(1+e^(-0.81))
    1/(1+e^(-0.25))
    1/(1+e^(0.01))
    1/(1+e^(0.25))
    (1.457227*3+1.457227*2)/2=
    2cos2+sin2
    3354000000+372666667-622500000
    3354000000+372666667-82500000
    909720000+101080000-146250000
    909720000×1/9
    600000×1.5×(25-0)+6000000×4×(25-0)
    1125000×1.5×(25-0)+11250000×4×(25-0)
    909720000+909720000-146250000
    3354000000+372666667-82500000
    6288750000+698750000-1167187500

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