Grade 12Algebra

LET SET A (1,2,3,4,5) & B(1,2,3) THEN

a) NUMBER OF ONE ONE FUNCTIONS FROM A TO B

b) NUMBER OF ONE ONE FUNCTIONS FROM A TO A SUCH THAT F(i) ≠ i, i BELONGS TO ELEMENTS OF A

PLZ REPLY

rohit kumar

15 Years agoGrade 12

1 Answer

SAGAR SINGH - IIT DELHI

Approved Tutor Answer15 Years ago

Dear student,

One-one function

There is one-one correspondence between the elements of the set A and the set B.

Many-one function

There is many-one correspondence between the elements of the set A and the set B.

Onto function

Every element of the set B has at least one pre-image.

Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation.

All the best.

Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar respectively : Click here to download the toolbar..

Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi

sagarsingh24.iitd@gmail.com