[1.2*26.23+0.23*30－5.4－10.8*1*100%]
    [1.2*26.37+0.23*26－5.4－10.8*0*100%]
    [1.2*26.37+0.23*26－5.4－10.8*0*100%
    sin180
    sin36.869898*cos36.869898*2
    sin(36.869898*2)
    sin36.869898*cos36.869898
    sin36.869898
    sin36.869898*cos36.869898
    cos36.869898
    sin36.869898
    arcsin(3/5)
    arcsin3/5
    arcsin0.5
    sin30
    sin30
    (67.35×4.59+24×12.04)/219.04
    (84.83×4.59+24×12.04)/256.24
    (95.94×15.55+13.1×26.8)/274.72
    √3*380*120*0.85

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