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current location:Mathematical operation > History of Mathematical Computation
    (20+18.0×0.7+19.4*3.4+19.2*0.8+19.8*1.4)*0.61-2*54*0.87
    (19.8*2.7+20*1+22*1.6+24*5.3)*4.6+2*24*2.14
    (20+18.0×0.7+19.4*3.4+19.2*0.8+19.8*4.1+20*1+22*1.6+24*5.3)*0.22-2*25*0.47
    (20+18.0×0.7+19.4*3.4+19.2*0.8+19.8*4.1+20*1+22*1.6)*0.22-2*20*0.46
    (20+18.0×0.7+19.4*3.4+19.2*0.8+19.8*4.1+20*1+22*1.6)*0.33-2*20*0.58
    (20+18.0×0.7+19.4*3.4+19.2*0.8+19.8*4.1+20*1)*0.33-2*40*0.58
    (20+18.0×0.7+19.4*3.4+19.2*0.8+19.8*4.1+20*1)*0.52-2*40*0.72
    (20+18.0×0.7+19.4*3.4+19.2*0.8+19.8*4.1)*0.52-2*54*0.72
    (20+18.0×0.7+19.4*3.4+19.2*0.8+19.8*4.1)*0.61-2*54*0.87
    (20+18.0×0.7+19.4*3.4+19.2*0.8)*0.61-2*31*0.87
    (20+18.0×0.7+19.4*3.4+19.2*0.8)*0.61-2*31.0*0.78
    (20+18.0×0.7+19.4*3.4 )*0.61-2*42.4*0.78
    (20+18.0×0.7+19.4*3.4)*0.6-2*42.4*0.78
    (20+18.0×0.7 )*0.6-2*10*0.78
    (20+18.0×0.7+19.4*3.4+19.2*0.8)*0.6-2*42.4*0.78
    (20+18.0×0.7+19.4*3.4)*0.6-2*10*0.78
    (20+18.0×0.7)0.70-2×10×0.84
    20×0.70-2×10×0.84
    (8.41×0.7)/2×(2/3×0.7)+((-36.9-20.56)×1.9)/2×[2/3×1.9×(-2×36.9-20.56)/(-36.9-20.56)+0.7] -20.56x(x/2+2.6)+(8.6x^2)/2(2/3 x+2.6)=126.77x(x/2+2.6)+(46x^2)/2(2/3 x+2.6)
    arccos0.877021

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