NCERT Solutions for Class 12 Maths Chapter 1 Exercise 1.1

NCERT Solutions for Class 12 Maths Chapter 1 Exercise 1.1 Relations and Functions in English and Hindi Medium are given below free to download in PDF. All NCERT Solutions based on latest NCERT Books 2020-21 are available to download as well as view online. If you have doubts regarding to NIOS Board or CBSE Board, please visit to discussion forum to ask your doubts.

In Exercise 1.1, the questions are based on Equivalence Relations. If any Relation is Reflexive, Symmetric and Transitive, it is called Equivalence Relation. If we have to prove that the function is not Equivalence, then one of the above condition must be false.

1. Reflexive Relation: Relation R defined on set A is said to be reflexive if (a, a) ∈ R ∀ a∈ A.
2. Symmetric Relation: Relation R defined on set A is said to be symmetric iff (a, b) ∈ R ⇨ (b, a) ∈ R ∀ a, b, ∈ A.
3. Transitive Relation: Relation R defined on set A is said to be transitive if (a, b) ∈ R, (b, c) ∈ R ⇨(a, c) ∈ R ∀ a, b, c ∈ A.
4. Equivalence Relation: A relation defined on set A is said to be equivalence relation if it is reflexive, symmetric and transitive.

Download NCERT Books and Offline Apps 2020-21 based on new CBSE Syllabus. Ask your doubts related to NIOS or CBSE Board and answer the questions asked by your friends and other users through Discussion Forum.