Unit-I: Sets and Functions
Unit-II: Algebra
Unit-III: Coordinate Geometry
Unit-IV: Calculus
Unit-V: Mathematical Reasoning
Unit-VI: Statistics and Probability

Relation

Let  A and  B be two arbitrary sets. A binary relation from  A to  B is a subset of  A \times B .

If (x, y) \in f then  f is called relation on A where  \left(x, y\right) be an element of  A .

We say that  x is related to  y through  f.

Sometimes instead of  f , we can use  R for relation and written as  xRy if  \left (x, y \right) \in R .

\rightarrow Since  \phi \subset A \times B, \phi is a relation from  A to  B .

\rightarrow A \times B \subseteq A \times B ,  A \times B is also a relation from  A  to  B .

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