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rohit kumar Grade: 12
        


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 


6 years ago

Answers : (1)

SAGAR SINGH - IIT DELHI
879 Points
										

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.



 


















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6 years ago
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