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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
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
Dear student,
There is one-one correspondence between the elements of the set A and the set B.
There is many-one correspondence between the elements of the set A and the set B.
Every element of the set B has at least one pre-image.
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