（16/（0.5A-0.06））+(43/(0.5A-0.1))≤(20/0.02)
    lgx＜1
    3/10 + 5229670409655129/90071992547409920<=sin(alpha)/2 < =26295227247788973/22517998136852480 - 7/10 alpha<=90
    3/10 + 5229670409655129/90071992547409920<=sin(alpha)/2 < =26295227247788973/22517998136852480 - 7/10
    -(x-1)^2+4<=4
    (x-1)^2<=4
    0.358061005000000*2 <= sin(a) <= 0.767742669129844*2
    0.358061005000000*2<=sin(a)<=0.767742669129844*2
    0<=-(x-1)^2+4<=4
    2*(3/10+ 5229670409655129/90071992547409920) <= sin(alpha)<=2*(26295227247788973/2251799813685248-2/5)
    3/10+5229670409655129/90071992547409920 <= sin(alpha)/2 <=26295227247788973/22517998136852480-2/5
    （16/（0.5A-0.06））+(35/(0.5A-0.1))≤(20/0.02)
    2/5 <= 26295227247788973/22517998136852480 - sin(alpha)/2 3/10 <= sin(alpha)/2 - 5229670409655129/90071992547409920
    （16/（0.5A-0.06））+(35/(0.5A-0.1))≤(20/0.02)
    （20/（0.5A-0.02））+(35/(0.5A-0.1))≤(16/0.06)
    2*(5229670409655129/90071992547409920+2/5)sin(alpha)<=2*(26295227247788973/22517998136852480-2/5)
    sin(alpha)<=2*(26295227247788973/22517998136852480-2/5)
    （2y-4）^2-4（y-2）（3y+7）≥0
    (264*7+88x)/(264*88)<0.22
    cos(x)<=0.5

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