若分式2x/(x+1)的值大于1,则x的取值范围为

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若分式2x/(x+1)的值大于1,则x的取值范围为
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若分式2x/(x+1)的值大于1,则x的取值范围为
若分式2x/(x+1)的值大于1,则x的取值范围为

若分式2x/(x+1)的值大于1,则x的取值范围为
2x/(x+1)>1
2x/(x+1)-1>0
2x/(x+1) - (x+1)/(x+1) > 0
[2x-(x+1)] / (x+1) > 0
(x-1) / (x+1) > 0
(x-1)(x+1)>0
所以 x>1 或者 x<-1

2x/(x+1)>1
2x/(x+1)-1>0
(2x-x-1)/(x+1)>0 这一步是通分
(x-1)/(x+1)>0
x>1或x<-1

x≠-1
当x>-1时;2x>x+1,x>1;
当x<-1时;2x则x>1或x<-1,