Mathematics
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    1/sin40
    14.25-(-8.531+9.367)/3
    14.25-(-8.531+9.367)
    -63.162-(-59.025+63.941)/6.6=
    63.162-(-59.025+63.941)/6.6=
    0.39×12×114400/5.3/5.3
    -7.104-(-8.170+7.952)/6.9
    -1.83-(-1.061+1.190)/3
    -6.719-(-7.166+7.347)/6.6
    0.55*2.718281828459^(-1)
    7.104-(-8.170+7.952)/6.9=
    1.83-(-1.061+1.190)/3
    6.719-(-7.166+7.347)/6.6
    -1.83-(-1.061+1.190)=
    -6.719-(-7.166+7.347)
    7.104-(-8.170+7.952)=
    1.83-(-1.061+1.190)=
    90-arctan(0.12*13)-arctan(0.02*13)-arctan(0.04*13)-arctan(5.1*13)+arctan(0.77*13)+arctan(0.1476*13)
    6.719-(-7.166+7.347)
    1/13/(3.69^0.5)

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