Mathematics
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current location:Mathematical operation > History of Mathematical Computation
    17.8×7.55+19×0.43+17.8×(8.48-0.43-7.55)+(17.8-9.8)×(16.47-8.48+0.43+7.55)+(17.9-9.8)×8.28+(19.2-9.8)×0.17+(17.9-9.8)×6.03
    (0.575×7.55+0.68×0.43+0.7×16.47+0.65×8.28)/32.73=
    (0.575×7.55+0.68×0.43+0.7×16.47+0.65×8.28)/32.73=
    348.13×(tan(45+15.2/2)*tan(45+15.2/2))+2×13.24×tan(45+15.2/2)=
    348.13×(tan(45-15.2/2)*tan(45-15.2/2))-2×13.24×tan(45-15.2/2)=
    (8×7.55+19×0.43+14×16.47+16.2×8.28)/32.73=
    (22×7.55+10.8×0.43+12.9×16.47+13.8×8.28)/32.73=
    343.74×(tan(45+14.52/2)*tan(45+14.52/2))+2×13.98×tan(45+14.52/2)=
    343.74×(tan(45-14.52/2)*tan(45-14.52/2))-2×13.98×tan(45-14.52/2)=
    343.74×(tan(45-14.52/2)*tan(45-14.52/2))+2×13.98×tan(45-14.52/2)=
    245.02+209.5+20=
    212.23+209.5+20=
    395.195×(tan(45+14.85/2)*tan(45+14.85/2))+2×14.12×tan(45+14.85/2)=
    395.195×(tan(45-14.85/2)*tan(45-14.85/2))-2×14.12×tan(45-14.85/2)=
    395.195×(tan(45-14.85/2)*tan(45-14.85/2))-2×14.12×tan(45-14.85/2)=
    17.8×3.93+19×2.35+17.8×(8.11-2.35-3.93)+(17.8-9.8)×(17.85-8.11+2.35+3.93)+(17.9-9.8)×7.49+(19.1-9.8)×0.69+(19.2-9.8)×1.09+(17.9-9.8)×5.25
    17.8×3.93+19×2.35+17.8×(8.11-2.35-3.93)+(17.8-9.8)×(17.85-8.11+2.35+3.93)+(17.9-9.8)×7.49+(19.1-9.8)×0.69+(19.2-9.8)×0.14
    471.7/(3.35×0.8)
    0.25×1.0×800×555
    0.25×0.8×800×555

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