Mathematics
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    arccos0.8666
    arccos1.418181
    arccos0.86666
    arccos0.94545
    3.54*189.8*√cos(14)*√(1.3*5.73*100000*5.2÷25÷42.308÷42.308÷4.2)
    3.54*189.8*√cos(19.012)*√(1.3*5.73*100000*5.2÷25÷42.308÷42.308÷4.2)
    arccos(0.94545)
    √(〖33.40〗^2+3×〖16.70〗^2 )
    (333.95×10^3)/(2×500×20)
    (333.95×10^3)/(500×20)
    (2×314.74)/(2×π×0.3)
    314.74/39.7
    314.74/39.7
    √((80.28/1.22)^2+〖83.25〗^2 )
    (314.7×10^3)/(7×2×280)
    (314.7×10^3)/(7×2×270)
    1.22×160
    (314.7×10^3)/(7×280)
    (40.91×10^6)/533230
    (40.91×10^6)/1187875

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