①不等式x+2/(x+1)>2的解集是____________________
问题描述:
①不等式x+2/(x+1)>2的解集是____________________
②不等式(x-1)/(x+2)>1的解集是______________________
答
x+2/(x+1)>2
通分
(x^2+x+2)/(x+1)>2
若x>-1
x+1>0
则x^2+x+2>2x+2
x^2-x>0
x>1,x