Mathematics
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    √821750331/√7000000
    199.36e(1.06/-1.54)-190.74e(1.06/-0.88)-15.5
    2+4+6
    366.68÷x=99.32%
    4+56+7
    7x+x^2 = 50
    x2 - 17/3x -2
    4+5+6
    x(x-3)=180
    90÷5×15
    2x+8x=120
    12÷(4÷3)=
    3×1+1
    abs-3
    10e-2
    1=x^2-3x+1
    x^(2)-2x=2x+1
    x^(2)
    (X-40-20)*(1-20%)/800 = (X-40-45)*(1-20%)/800
    arctg0.707

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