Mathematics
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    (7.9*1882+3000*4)/(1882+3000)
    123456789+987654321
    123456789+876543211
    123456789*9
    100*365*60*60*24
    21000+10000
    24500-3500
    3-5
    48÷5
    cos35
    20/3√3/2/3√3
    10√3
    36*cos30
    36*sin80
    36*cos80
    36*tan80
    11.72+1.72
     15/tan52
    5/3√3
    √69^2+23^2

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