logx+1(2-x)>1解不等式
问题描述:
logx+1(2-x)>1解不等式
答
当0<x+1<1即-1<x<0时,logx+1(2-x)>1=logx+1(x+1) 则2-x<x+1得x>1/2,所以是空集.当x+1>1 即x>0时,logx+1(2-x)>1=logx+1(x+1),则2-x>x+1得x
logx+1(2-x)>1解不等式
当0<x+1<1即-1<x<0时,logx+1(2-x)>1=logx+1(x+1) 则2-x<x+1得x>1/2,所以是空集.当x+1>1 即x>0时,logx+1(2-x)>1=logx+1(x+1),则2-x>x+1得x