Straight Lines Question no. 31 Let A be the non-void set of the children in a family. The relation ' x is a brother of y ' on A is looks_one Reflexive looks_two Symmetric looks_3 Transitive looks_4 None of these Answer Option looks_3 0 Solution very soon 16 Question no. 32 Let A = {1,2,3,4} and let R = { (2,2) , (3,3) , (4,4) , (1,2) } be a relation on A. Then R is looks_one Reflexive looks_two Symmetric looks_3 Transitive looks_4 None of these Answer Option looks_two q Solution ver soon 2 Question no. 33 The void relation on a set A is looks_one Reflexive looks_two Symmetric and Transitive looks_3 Reflexive and Symmetric looks_4 Reflexive and Transitive Answer Option looks_3 5: 7 Solution very soon 3 Question no. 34 Let R 1 be arelation defined by R 1 = {(a,b) | a ≥ b , a,b ∊ R }, then looks_one An equivalence relation on R looks_two Reflexive ,...

Set, Relation and Function Question no. 16 In a class of 55 students , the number of students studying different subjects are 23 in Mathematics, 24 in physics, 19 in chemistry , 12 in mathematics and physics , 9 in mathematics and chemistry , 7 in physics and chemistry and 4 in all the three subjects. The number of students who have taken exactly one subject is looks_one 6 looks_two 9 looks_3 7 looks_4 All of these Answer Option 1. 0 Solution very soon 16 Question no. 17 If A,B and C are any three sets , then A ✕( B ⋃ C ) looks_one (A ✕ B) ⋃ (A ✕ C) looks_two (A ⋃ B) ✕ (A ⋃C) looks_3 (A ✕B) ⋂ (A ✕C) looks_4 None of these Answer Option 1 is correct answer solution ver soon 2 Question no. 18 If A, B and C are any three sets , then A - (B ⋃ C) is equal to looks_one (A-B) ⋃ (A-C) looks_two (A-B) ⋂ (A-C) looks_3 ...