arcsin0.1
    arcsin14/140
    arcsin14/140
    tan9.95
    sin0.995 tan9.95 cot0.1
    sin0.995
    tanarccos0.65-tanarccos0.9
    54*62-53*63
    1/3-ln3
    1/2-ln2
    1/-ln2
    2ln4
    4ln2
    36.5×0.6=
    63.16×0.6=
    21.5×0.6=
    13.16×0.6=
    21.5×0.6=
    13.16×0.6=
    63.16×0.6=

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