Function is generally defined as
' If each and all element of set A is connected with the unique elements of set B i.e not to more than one then it is a function.
One to one function
A function from A to B is said to be a one to one function if different elements of set A are mapped with different elements of set B i.e. no any two elements of Set A are mapped with the single element of Set B.
Bijective Function
A function from A to B is said to be a bijective function if the function is one to one and also onto function.
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