SORRY EDITTED
ITS Qc & not Q
f; R--> R
f(x) = {x + √5 , x εQ
{√5- x , x εQc , THEN f is
A) one-one & onto B) one-one and into
C) many-one & onto D) many-one and into
It can give every value in R
I mean every image has a pre image in the given Domain