what is bijection,one to one function and many to one function.

Asked by  | 1st Dec, 2010, 12:00: AM

Expert Answer:

Dear Student
Following is the solution of your question
A function is said to be one to one if every element of domain has a unique image
i.e 

f(x) = f(y) gives x = y

If the function is not one -one then it is many to one

if every element in B is the image of some element in A,  f is onto.For an onto function range = co-domain.

 A function which is both one-one and onto is called a bijective function or a bijection

Answered by  | 2nd Dec, 2010, 09:33: AM

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