SAGAR SINGH - IIT DELHI
Last Activity: 14 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.

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All the best.
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Sagar Singh
B.Tech, IIT Delhi
sagarsingh24.iitd@gmail.com