The number of symmetric relations defined on the set $\{1,2,3,4\}$ which are not reflexive is

  • [JEE MAIN 2024]
  • A

    $950$

  • B

    $940$

  • C

    $960$

  • D

    $965$

Similar Questions

Show that the number of equivalence relation in the set $\{1,2,3\} $ containing $(1,2)$ and $(2,1)$ is two.

Let $A=\{1,2,3\} .$ Then show that the number of relations containing $(1,2) $ and $(2,3)$ which are reflexive and transitive but not symmetric is four.

Define a relation $R$ over a class of $n \times n$ real matrices $A$ and $B$ as $"ARB$ iff there exists a non-singular matrix $P$ such that $PAP ^{-1}= B "$ Then which of the following is true?

  • [JEE MAIN 2021]

Determine whether each of the following relations are reflexive, symmetric and transitive:

Relation $R$ in the set $A$ of human beings in a town at a particular time given by

$R =\{(x, y): x$ and $y$ live in the same locality $\}$

Let $R$ be a relation on a set $A$ such that $R = {R^{ - 1}}$, then $R$ is