Ordered pairs, Cartesian product of sets. Number of elements in the Cartesian product of two
finite sets. Cartesian product of the reals with itself (upto R × R × R).
Definition of relation, pictorial diagrams, domain, co-domain and range of a relation. Function as
a special kind of relation from one set to another. Pictorial representation of a function, domain,
co-domain and range of a function. Real valued function of the real variable, domain and range of
these functions, constant, identity, polynomial, rational, modulus, signum and greatest integer
functions with their graphs. Sum, difference, product and quotients of functions.
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