Question

要使√(x+1)/(x-1)有意义,求x的取值范围

Answer 1

要使√(x+1)/(x-1)有意义,求x的取值范围

1,如果(x+1)/(x-1)在根号下

要使根号有意义,则(x+1)/(x-1)要≥0,且x-1≠0,

所以x>1或x