X-674.52-(X-674.52-10000)*3%=14128.54
    3x+2x=3
    X-578.52-(X-578.52-10000)*3%=11400.15
    X-462.16-（X-462.16-10000）*3%=12149.46
    X-674.52-（X-675.52-10000）*3%=9910.50
    tan（0.0373*x）=0.3269
    tan（0.0373*x）*tan（0.053*21.2）=3.394/4.979
    (155+232)/31*x+269.5/31*(x+15)+124/31(x+30)=1370
    a+0.02a=156979.99
    cosx/(x^2+1)
    a+0.02a=34102.5
    a+0.02a=797181.54
    a+0.02a=10091.05
    tan（0.0385*20）tan（0.0385*x）=2.56
    tan（0.053*21.2）*tan（0.0373*x）=3.934/4.979
    tan（0.053*21.2）*tan（0.0373*x）=3.394/4.979
    x+x*0.03=2144
    tan（0.0373*x）*tan（0.053*21.2）=3394/4979
    tanx*tan1.1236=0.6817
    -0.0015*X^2+0.0142*x-0.0037=0

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