lg|x|=0,那么|x|=1,于是x=1或-1,于是A={-1,1};
1/2
猜你喜欢
- 1碳酸氢钠溶液与稀盐酸反应化学方程式
- 2已知tanα=-2,则sin平方α-3sinαcosα+1=
- 3英语Pair Work:What names are popular in you country?Why are they popular?
- 4-1+1+9分之1+(-8)计算
- 5有三个数,a,b,c成等差数列(a
- 6是否存在这样的整数A,使方程组【3X+4Y=A} [4X+3Y=5}的解是一对非负数?如果存在.求它的解,不存在,说明理由
- 7求一篇关于理想的议论文,高中哦800字
- 8My friend _____(call) me this morning.
- 9in some p___ of china people go to the flower shops to buy lots of b__ flowers
- 10设曲线y=x^3在点(a,a^3)(a≠0)处的切线与x轴,直线x=a所围成的三角形面积为1/6,求a