Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) `f={(x.x^2/(x^2+1)) x in R}`, be a function R into R, range of 'f' - Sarthaks eConnect

`f={(x.x^2/(x^2+1)): x in R}`, be a function R into R, range of 'f'

[0, 1)

`(-oo, oo)`

`(0, oo)`

`R^+`