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Given and .
A relation is a function when every element of set A has image in B and a element of set A can-not have more than one image in set B.
So, Relation is a function.
(c) Given is a real valued function defined by .
(I) Function is defined for all real values of . Hence,
(ii) Now, as
Hence, Range of
(iii) Representation of as a set of ordered pair =