Check the injectivity and surjectivity of the following functions:(i) `f : N -N`given by
Channel: Doubtnut
Date: 2020-06-28

Check the injectivity and surjectivity of the following functions:(i) `f : N -N`given by `f(x)=x^2`(ii) `f : Z-Z`given by `f(x)=x^2` (iii) `f : R -R`given by `f(x)=x^2`(iv) `f : N- N`given by `f(x)=x^3`(v) `f : Z â†’ Z` given by `f(x) = x^3`