Mathematics
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    1.9782×(2.2×40+6.8×65+4.9×80+1.1×130)+0.28×6200×0.31
    1.9782×2.2×40+6.8×65+4.9×80+1.1×130+0.28×6200×0.31
    0.9×(1.0×3.32×16.7+2×1.0×0.086×3.59×360)×4.1×10^5
    √((2300×2300)/410000)
    √(4520000/410000)
    20251119-19610307
    0.9×(1.0×2.36×16.7+2×1.0×0.086×2.56×360)×8.1×10^5
    √(4520000/810000)
    √((2300×2300)/810000)
    (23×(201.06+490.87)×2300)/(2300×2300×80)
    (51954×10^3)/2460000-(95446.96×1087)/(2.18×10^6 )
    (51954×10^3)/2460000+(95446.96×1087)/(2.18×10^6 )
    4×135×30+30×140×2
    (51954×10^3)/3540000-(95446.96×1087)/(2.18×10^6 )
    (51954×10^3)/3540000+(95446.96×1087)/(2.18×10^6 )
    4×135×50+30×140×2
    (51954×10^3)/1640000+(95446.96×1087)/(2.18×10^6 )
    (51954×10^3)/1640000-(95446.96×1087)/(2.18×10^6 )
    4×135×20+20×140×2
    1+1

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