Mathematics
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    arccos0.37
    arctan(3.42)
    arctan(-0.932)
    arctan(-35.44)
    5*5*5*5
    11.7*0.25
    abs(1.02)
    abs1.02
    abs-10
    lg3.65
    sin35
    arctan(-11.929)
    arctan(11.929)=
    356+54+98-412=
    (1-(850➗1000)^0.7)=
    (1-(850➗1000)0.7)=
    tan34.97
    arctan1.43
    arctan1.33
    arctan3/4

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