Mathematics
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    48×48+37×37-2×48×37×cos34
    48×48+37×37-2×48×37×cos45
    48×48+37×37-2×48×37×cos56
    48×48+37×37-2×48×37×cos49
    48×48+37×37-2×48×37×cos71
    arcsin51
    arcsin50
    sqrt(3673-(3552×cos49))
    sqrt(3673-3552×cos49)
    sqrt(3770-3552×cos49)
    3770-3552×cos49
    arcsin(36.645×sin56÷37)
    arcsin(31.042×sin56÷37)
    31.042×sin56÷37
    6.59*10^(-3)/20/10^(-15)*10^(-12)
    6.59*10^(-3)/20/10^(-15)*10^(-15)
    arcsin(31.042×sin56÷37)
    6.59*10^(-3)/20/10^(-15)*10^(-6)
    6.59*10^(-3)/20/10^(-15)
    0.56*50*3/(1+1/0.9)^0.45+0.35*103*10^(-2)/(1+1/0.9)^0.2

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