y=(1-|x|)/(1+|x|)
(1-|x|)=y+y|x|
(1-y)=(1+y)|x|
(1-y)/(1+y)=|x|≥0
(y-1)/(y+1)<=0(y≠ -1)
-1<y<=1
原函数的值域为(-11]
欢迎分享,转载请注明来源:品搜搜测评网
y=(1-|x|)/(1+|x|)
(1-|x|)=y+y|x|
(1-y)=(1+y)|x|
(1-y)/(1+y)=|x|≥0
(y-1)/(y+1)<=0(y≠ -1)
-1<y<=1
原函数的值域为(-11]
欢迎分享,转载请注明来源:品搜搜测评网