Mathematics
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    264*cos0.5-132*cos(1.4-1.57)
    1000000/4.747631619816742
    -264*sin0.5+132*sin(1.4-1.57)
    -264*sin1+132*sin(2.8-1.57)
    264*cos1-132*cos(2.8-1.57)
    1/48×1.7×1.7×7.5×102.85=
    350.91-248.06=
    (3/14+5/21)÷1/7
    arccos(-0.5)
    atan[(√3)/5]
    atan[(√3)/2]
    atan(√3)
    atan0.5
    2590.7/2.9=
    545.6×1000000/(0.9×650×360)=
    1/12×1.35×1.35×(5.5×598.97+298.27)=
    (350.91-248.06)×2.9=
    248.06+350.91=
    2.9×2+0.7=
    350.91×2.05/2.9=

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