English

Let R = {(A, A), (B, B), (C, C), (A, B)} Be a Relation on Set a = A, B, C. Then, R is (A) Identify Relation (B) Reflexive (C) Symmetric (D) Antisymmetric

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Question

Let R = {(a, a), (b, b), (c, c), (a, b)} be a relation on set A = a, b, c. Then, R is _______________ .

Options

  • identify relation

  • reflexive

  • symmetric

  • antisymmetric

MCQ
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Solution

reflexive

Explanation:

Reflexivity: Since (a, a∈ R ∈ A, R is reflexive on A.

Symmetry: Since (a, b) R but (b, a) R, R is not symmetric on A.

⇒ R is not antisymmetric on A.

Also, R is not an identity relation on A.

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Chapter 1: Relations - Exercise 1.4 [Page 32]

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R.D. Sharma Mathematics Volume 1 and 2 [English] Class 12
Chapter 1 Relations
Exercise 1.4 | Q 15 | Page 32

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