arctan[sqrt(1-(0.00627760618147)^2)*sin(-0.0311677402)/(sin(-0.0311677402)-0.00627760618147)］
    -0.03116432523216301+0.006277670618147*sin(-0.031167)
    -0.03116432523216301+0.006277670618147*sin(-0.03116432523216301)
    sin(-2.838305071)
    arctan[(sqrt(1-0.006277670618147)*sin0.031171)/(cos0.031171-0.006277670618147)］
    sin(-2.83799427)
    (cos0.031171-0.006277670618147)/(1-0.006277670618147*cos0.031171)
    arcsin0.3079
    (1550+1.5122*500)/(1000+500)
    （53800-6000）/（88000-6000）
    √230700
    2√3600×√230700
    2√3600×230700
    0.5*(lg32/lg2)
    5-sin2
    4*3.14*6400^2*0.7*4*10^15*25
    (2*9.8*0.725*(sin(45)-0.12cos(45)))^(1/2)
    37.2^2*sin(28.2)/9.8
    (1/((1/(149*10^9))^2-((1/(298*10^9))^2))^(1/2)
    (1/((1/(149*10^9))^2-(1/(298*10^9))^2))^(1/2)

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