If `R` is a symmetric relation on a set `A` , then write a relation between `R` and `R^(-1)` .

If R is an equivalence relation on a set A, then R^-1 is

Write the relation between ^nP_r and ^nC_r

If R and R' are symmetric relations (not disjoint ) on a set A then the relation R cap R' is not

If R and R' are symmetric relations (not disjoint) on a set A ,then the relation R uu R' is (i) Reflexive (ii) Symmetric (ii) Transitive (iv) none of these

Statement-1: If R is an equivalence relation on a set A, then R^(-1) is also an equivalence relation. Statement-2: R = R^(-1) iff R is a symmetric relation.

Statement-1: If R is an equivalence relation on a set A, then R^(-1) is also an equivalence relation. Statement-2: R = R^(-1) iff R is a symmetric relation.

If relation R defined on set A is an equivalence relation, then R is

If R is a relation on a set A, prove that R is symmetric iff R^-1 = R.