R={(x y) ): x is brother of y} the relation R is :
(A) Symmetric
(b) transitive
(c) both of these
(d) none of these

If A={a,b,c} then the relation R={(a,b),(b,a)} is: (a)Reflexive (b) Symmetric (c) Transitive (d) None of these

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

6.In the set A={1,2,3,4,5), a relation R is defined by R={(x,y):x, ye Aand rlty }. Then R is (a) reflexive (b) symmetric (c) transitive (d) none of these

Let A={1,\ 2,\ 3} and R={(1,\ 2),\ (2,\ 3),\ (1,\ 3)} be a relation on A . Then, R is (a)neither reflexive nor transitive (b)neither symmetric nor transitive (c) transitive (d) none of these

If R be a relation in a set A and (x, y) in R rArr(y, x) in R AA x, y in A then the relation R is called (A) reflexive (B) symmetric (C) transitive (D) equivalence

2. If A={a,b,c} and R={(a, a),(a, b),(a, c), (b, c)}be a relation on A, then R is(a) reflexive (b) transitive (C) symmetric (d) none of these Tatooidh... TU

If A={1, 2, 3} , then a relation R={(2,3)} on A is (a) symmetric and transitive only (b) symmetric only (c) transitive only (d) none of these

Let T be the set of all triangles in the Euclidean plane, and let a relation R on T be defined as a\ R\ b if a is congruent to b for all a ,\ b in T . Then, R is (a) reflexive but not symmetric (b) transitive but not symmetric (c) equivalence (d) none of these

Let M be the set of men and R is a relation is son of defined on M.Then,R is ( a) an equivalence relation (b) a symmetric relation (c) a transitive relation (d) None of these

X is the brother of Y and Z is the brother of X. How is Y related to Z ? 1) Brother 2) Sister 3) Brother or Sister 4) Father 5) None of these