(5797.92278×0.839)/4000
    (433.33×10^3)/(π/4×5.5 ^2×6×3600)
    (5797.92278×0.839 )/5000
    (5797.92278×4864.45)/5000
    (1+0.06289)/1.1623
    0.673×1.81×10^(-5)
    (4801.205 ×(1.437+1.148)/2)/(π/4×4^2×3600)
    (5797.92278×0.00735)/5000
    (1+0.00711)/1.496
    (433.33*10^3)/1120
    (2.25×0.120×107.76^2)/(102×2×9.81)
    433.329/3600
    ((7.57×10^(-5) )^2×(1120-0.7938)×9.81)/(18×1.791×10^(-5)×0.7938)
    1001375.02/(1902.5*0.95)
    256.79/69.08
    0.03×220-1
    (4×7.57×10^(-5)×1120)/(3×0.563×0.808)
    256.79 /60.3
    ((1+0.00711)/1.496+(1+0.06289)/1.1623)/2
    ((2490+1.88*95)-4.187*55)/ 25.61 *(219.13-38.171)

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