Mapping or Function: Let A and B be any two non-empty sets. If to each element a (pre-image) belongs to A (domain), there is assigned , in some manner or the other, a unique element b (image) belongs to  B (codmain), then such an assignment f is called a mapping or function for A into B and we write f : A->B.

 
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Check: What is Range of Function; What are the different types of functions ; Domain and Range worked out problem

Worked Out Solved examples for domain or mapping of a function

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