1.3587=-0.02630*x^2+0.0888*x+1.3573
    1.3572=-0.02630*x^2+0.0888*x+1.3573
    1.4192=0.02630*x^2+0.0888*x+1.3573
    1.4166=0.02630*x^2+0.0888*x+1.3573
    1.4001=0.02630*x^2+0.0888*x+1.3573
    1.3965=0.02630*x^2+0.0888*x+1.3573
    cos(1210/x)=(x-150)/x
    1.3934=0.02630*x^2+0.0888*x+1.3573
    1.3868=0.02630*x^2+0.0888*x+1.3573
    1.3716=0.02630*x^2+0.0888*x+1.3573
    1.3593=0.02630*x^2+0.0888*x+1.3573
    1.12*X+(0.066*1.07*X)=100000
    1.12X+(0.066*1.07X)=100000
    200X+（110*0.65-X）*130+65*110+110*0.25*75=22696
    8x^(2)+10x-7=0
    200X+（130*0.65-X）*130+65*87+87*0.25*75=22696
    15x+100(1-x)=40
    3x＋1<2(x＋2)
    m^(2)-5m-93.75=0
    －2x<4

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