### Binary Relation Domain of R and Range of R 1. If A contains 6 elements and B has 7 elements then the number of all possible binary relations are? a) 7x7 b) 6x6 c) 27 d) 27 x 6 2. If the number of elements in set A is M and in set B, is N then number of binary relation in AxB will be_ _ _ _ . a) mn2 b) 2mn c) 3mn d) mn3 3. The Domain of R={(5,4), (5,7), (8,11)} is? a) {5,8}. b) {3,4,5,7,8,11}. c) {4,5,7,11}. d) {4,7,11} 4. Domain of R is denoted by? a) Dom R b) (R) Dom c) D of R d) Dom (R) 5. If X={1} and Y={a,b} then the binary relations of X x Y are? a) R1 = Æ, R2 = {(1,a)}, R3 = {(1,b)}, R4 {(1,b),(1,b)} b) R1 = Æ, R2 = {(2,a)}, R3 = {(1,b)}, R4 {(1,a),(1,b)} c) R1 = Æ, R2 = {(1,a)}, R3 = {(1,b)}, d) R1 = Æ, R2 = {(1,a)}, R3 = {(1,b)}, R4 {(1,a),(1,b)} 6. If A and B are two non-empty sets, then every subset R of set A x B is called _ _ _ _ _ _ . a) Non binary relation. b) Logic relation. c) Logical relation. d) Binary relation. 7. The Domain of f = {(a,x), (b,y), (c,y),(d,t)} is a) {b,y,t} b) {b,y,y,t} c) {x,y,t} d) {a,b,c,d} 8. Every subset of a Cartesian product is called _____________relation. Click here to enter your answer! 9. If the number of elements in set X and set Y is 3 each, the number of binary relations in X � Y is 32 a) True b) False 10. The Range of R={(3,6), (5,8), (8,13)} is {6,8,13}. a) False b) True 11. The set consisting of second elements of all the odered pairs of R is called _ _ _ _ _ _ . a) D of R b) Domain of R c) R of R d) Range of R 12. The Range of R={(3,4), (5,7), (8,11)} is? a) {4,5,7,11}. b) {4,7,11} c) {3,4,5,7,8,11}. d) {3,5,8}. 13. If set R is a binary relation, then the set consisting of second elements of all the ordered pairs of R is called the Domain of R. a) True b) False 14. Binary relations of A x B and B x A is _ _ _ _ _ _ _ . a) Logical b) Same c) Illogical d) Different 15. If set R is a binary relation then the set consisting of first elements of all the orered pairs of R is called _ _ _ _ . a) R of R b) Domain of R c) D of R d) Range of R 16. The set consisting of all first elements of the ordered pairs of a binary relation is called -------- of R. Click here to enter your answer! 17. The range of f = {(a,x), (b,y), (c,y),(d,t)} is a) {b,y,t} b) {x,y,y,t} c) {x,y,t} d) {a,b,c,d} 18. Range of R is denoted by? a) Range R b) (R) Range c) Range (R) d) R of R

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