Mathematics
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    (20+18.5×0.5+19.4×2.7+19.5×1.3+18.6×0.8)×0.56-2×18.1×0.75
    (20+18.5×0.5+19.4×2.7+19.5×1.3)×0.56-2×18.1×0.75
    (20+18.5×0.5+19.4×2.7+19.5×1.3)×0.56-2×18.6×0.75
    (20+18.5×0.5+19.4×2.7+19.5×1.3)×0.38-2×3.0×0.61
    (20+18.5×0.5+19.4×2.7)×0.38-2×3.0×0.61
    (20+18.5×0.5+19.4×2.7)×0.38-2×20.0×0.61
    (20+18.5×0.5+19.4×2.7)×0.53-2×20×0.73
    (20+18.5×0.5)×0.53-2×20×0.73
    cos(0.00482)
    cos(0.00481)
    (20+18.5×0.5)×0.66-2×12×0.81
    arcsin(0.0048172806122448)
    arcsin(0.0048127864992150)
    arcsin(0.0049129166666)
    arcsin(0.004908333)
    arcsin(4/117)
    arcsin(4/9)
    1.02^4
    1.03^4
    757-30-30-75-89-133-45.11-45.11

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