Mathematics
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    922^0.625
    16.579^-0.375
    (1/1/2+√5)+(1/1/2-√5)
    [(1+√(1-3.14159cinos2))/(2cinos2)
    21^2+480
    (x+3)(x+5)=e
    ln(x+3)+ln(x+5)=1
    70%*130X*6.4%
    54/60
    58/60
    1010101010101010101010101010101/3
    90/40
    258*258
    X/45=75/100
    √(176.3584-x^2)+√(174. 24-x^2)=2
    sqrt(176.3584-x^2)+sqrt(174. 24-x^2)=2
    (√176.3584-x^2)+(√174.24-x^2)=2
    arctan0.54
    arctan0.27
    arctan112.05

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