Define range of a function. - Vidyadip

Question

Define range of a function.

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Answer

Suppose $f : A B.$ then a set of images or functional values $f$ all the elements of set $A$ is called range of function $f$. It is denoted by $R_f$.
$R_f=\{f(x) \mid x \quad A\}$
The range of a function may be co-domain itself or a subset of co-domain.

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