求解x-1除以x+1小于等于2.

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求解x-1除以x+1小于等于2.求解x-1除以x+1小于等于2.求解x-1除以x+1小于等于2.x等于1(x-1)/(x+1)≤21)x+1x-1≥2x+2x≤-3所以x≤-32)x+1>0x>-1x

求解x-1除以x+1小于等于2.
求解x-1除以x+1小于等于2.

求解x-1除以x+1小于等于2.
x等于1

(x-1)/(x+1) ≤ 2
1)x+1<0即x<-1
x-1≥2x+2
x≤-3
所以x≤-3
2)x+1>0 x>-1
x-1≤2x+2
x≥-3
所以x>-1
所以x>-1或 x≤-3

(x-1)/(x+1)≤2
当x+1>0,即x>-1时,
x-1≤2(x+1)=2x+2
x≥-3
所以此时x>-1
当x+1<0,即x<-1时,
x-1≥2(x+1)=2x+2
x≤-3
所以此时x≤-3
综上所述,x≤-3或x>-1

x-1/x+1<=2
x+1>0 有2x+2>=x-1则x>=-3,所以x>-1
x+1<0 则2x+2<=x-1则x<=-3 所以x<=-3
综合看是x>-1或x<=-3

1.当X大于-1时:X-1≤2X+2
X-3
得X大于-1
2.当X小于-1时:X-1≥2X+2
X≤-3
得X小于等于-3