Mathematics
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    22.5×0.8×0.6=
    75×28+34(63-58)
    75×28+34(63-58)
    (1/206265)
    [1-0.68/(0.68+9.32)×(1-0%)]×100%
    38570÷12÷160
    36540÷12÷160
    38000×(1+1.5%)
    36000×(1+1.5%)
    tanarccos0.65
    [1-8.93/(8.93+1.07)×(1-0%)]×100%=
    -1÷10+1
    -1+11÷10
    -1+1÷10
    sin(e^10000000000π)
    sin(e^10π)
    sin((10^10^100))
    sin((10^10^100)π)
    arctan0.89
    arctan0.89

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