Mathematics
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    2.5*tan34.07
    3.32*tan34.07
    2.5+((2.5*sin34.07)/sin(180-110-34.07))*cos70
    7*2^0.3
    7*0.5^0.3
    7*2^0.15
    7*0.5^0.15
    1.2*1.4*1.25
    1.2*(1.4*0.25+1 )
     1.2*(1.4*0.25)+1
    (1.2*0.25)+1
    e^(-10)
    102.89*0.156
    10/(0.156*0.623)
    90-arctan(2)-arctan(2/5)
    lg22
    ln22
    cos60-tan55/3^9
    e^(-0.00001)
    8π/3

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