Let R be a relation on the set L of lines dened by l1 R l2 if l1 is perpendicular to l2 , then relation R is

Given set A ={1,2,3} and a relation R={(1,2),(2,1)}, the relation R will be

Given set A = {a, b, c). An identity relation in set A is

If A and B are two given sets, then A∩(A∩B)ⁿ is equal to

If a set A has n elements, then the total number of subsets of A is

If A and B are any two sets, then A∪(A∩B)is equal to

The number of proper subsets of the set {1, 2, 3} is

if each element of A is related to every element of A, i.e., R = A × A.

Given the sets A={1,2,3},B={3,4}, C = {4, 5, 6}, then A∪(B∩C) is

A relation R in a set A is called _______, if (a, a) ∈ R, for every a ∈ A,

A relation R in a set A is called_________ , if (a1, a2) ∈ R implies that (a2, a1) ∈ R, for all a1, a2 ∈ A.

A relation R in a set A is called_________ , if (a1, a2) ∈ R and (a2, a3) ∈ R implies that (a1, a3)∈ R, for all a1, a2,a3 ∈ A.

The set A={x:x∈R,x²=16 and 2x=6} equals

A function f : X → Y is said to be ________, if every element of Y is the image of some element of X under f, i.e., for every y ∈ Y, there exists an element x in X such that f(x) = y

A function f : X → Y is said to be _________, if f is both one-one and onto.

Let f : R → R be defined as f(x) = x^4. Choose the correct answer

Let f : R → R be defined as f(x) = 3x. Choose the correct answer.

Let S={0,1,5,4,7}. Then the total number of subsets of S is

If A={a,b},B={c,d},C={d,e}, then{(a,c),(a,d),(a,e),(b,c),(b,d),(b,e)} is equal to

An element a ∈ X is _________ for binary operation ∗ : X × X → X, if there exists b ∈ X such that a ∗ b = e = b ∗ a

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

Let A = {1, 2, 3}. Then number of equivalence relations containing (1, 2) is

Let n(U)=700,n(A)=200,n(B)=300 and n(A∩B)=100, then n(Aⁱ∩Bⁱ)=

If A, B and C are any three sets, then A × (B ∪ C) is equal to

If A={2,4,5},B={7,8,9}, then n(A×B) is equal to