CBSE Class 11-science Maths Relations and Functions
Cartesian Product of Sets
The set of all the first elements of the ordered pair in a relation R is called the domain of the relation R.
The set of all second elements of the ordered pair in a relation R is called the range of the relation R.
The set B is called the co-domain of the relation R from A to B. Range is always a subset of co-domain.
A function f from a non-empty set A to a non-empty set B is a relation from A to B such that every element of A has a unique image.
Set of all the images is known as the Range.A real function is a function with domain and domain as the set of real numbers.
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