# Q. 7 Give examples of two functions and  such that is onto but  is not onto.(Hint : Consider  and

and

and

Onto :

Consider element in codomain N . It is clear that this element is not an image of any of element  in domain N .

f is not onto.

Now, it is clear that   , there exists       such that  .

Hence,  is onto.

## Related Chapters

### Preparation Products

##### JEE Main Rank Booster 2021

This course will help student to be better prepared and study in the right direction for JEE Main..

₹ 13999/- ₹ 9999/-
##### Rank Booster NEET 2021

This course will help student to be better prepared and study in the right direction for NEET..

₹ 13999/- ₹ 9999/-
##### Knockout JEE Main April 2021 (Easy Installments)

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 4999/-
##### Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 14999/-