Question

What are bijective injective and surjective functions?

Answer 1

Injective function - If every element of X has a distinct in Y ..Also called one one function
Surjective function- If every element of Y is mapped then it is called surjective function or onto function
Bijective function - A function which is injective and surjective both is called bijective function

Answer 2

Here is your answer....
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Those functions which are both one-one and onto functions are called bijective.
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Hope this helps you.....✌✌