Mathematics
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    (243,551)
    ln1
    log(2,1048576)
    C(49,7)
    4-3
    -4-3
    -6-1=
    -6+1
    -1-10
    1+1
    -20*(22^2)+400*22+6000=
    -(20*22)^2+400*22+6000=
    (ln3)^2
    arctan 20/300
    arctan 20/300
    1+1
    7*11*13*17*19*23*29
    (arcsin1+arccos1)-arcsin(-1)-arccos(-1)
    arcsin(5)
    -arctan0.05-arctan0.5

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