xex＞e-1
    sqrtx/x+(log(x,x-1))+asinx+tanx+x^0+lnx＜10000
    sqrtx/x+(log(x,x-1))+asinx＜10000
    sqrtx≤0
    x×e∧x>1÷e
    x×e∧x>1÷x
    1≤1/3x+2≤3
    110x+140（160－x）≤7800
    x/0＞1 2/0 7/6/0/3 lg(-1) 2/107 -1234567890,1234567890 -12
    x^x≥10^100
    x^x≥10000
    2+3i≥1+i
    3≤x＜3
    3≤x≤3
    (1+1/x)^x+lnx＞2.718282+lnx
    1/（2^（k+1））≤0.05
    (1+1/x)^x+lnx＞e+lnx
    -1/a小于e
    2x-5＞-3（x-5）
    -1/x小于e

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