CLASS-12 CHAPTER-1 EX-1.1 QUE-7,8,9 {IMP}📚

CLASS-12 CHAPTER-1 RELATION AND FUNCTION EX-1.1 QUE-7,8,9

Exercise based on equivalence relation

Equivalence Relation- A relation R in a set A is an equivalence relation if R is reflexive, symmetric and transitive.

A relation R in a set A is called-

Reflexive- if (a, a) ∈ R, for every a ∈ A,

Symmetric- if (a1, a2) ∈ R implies that (a2, a1) ∈ R , for all a1, a2∈ A,

Transitive- if (a1, a2) ∈ R and (a2, a3) ∈ R  implies that (a1, a3) ∈ R  for all a1, a2, a3 ∈ A.

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