EASY
CUET (UG)
IMPORTANT
Earn 100

Set A has 3 elements and set B has 4 elements. The number of injections that can be defined from A to B is:

50% studentsanswered this correctly

Important Questions on Relations and Functions

EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Mathematics Practice Book>Chapter 1 - Relations and Functions>Exercise>Q 52
Let A={1,2,3,4}. Which of the following functions is a bijection from A to A?
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Mathematics Practice Book>Chapter 1 - Relations and Functions>Exercise>Q 53
Let A and B be two finite sets having m and n elements respectively. If m≤n; then the total number of injective functions from A to B.
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Mathematics Practice Book>Chapter 1 - Relations and Functions>Exercise>Q 54
Which of the following functions is even?
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Mathematics Practice Book>Chapter 1 - Relations and Functions>Exercise>Q 55
The number of bijective functions from set A to itself when A contains 106 elements is:
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Mathematics Practice Book>Chapter 1 - Relations and Functions>Exercise>Q 56
Which of the following function is not one-one?
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Mathematics Practice Book>Chapter 1 - Relations and Functions>Exercise>Q 57
The function f:R→R defined by f(x)=x3+1, is
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Mathematics Practice Book>Chapter 1 - Relations and Functions>Exercise>Q 58
If the set A contains 5 elements and the set B contains 6 elements, then the number of one-one and onto mappings from A to B is
MEDIUM
CUET (UG)
IMPORTANT
Achieve CUET (UG) Mathematics Practice Book>Chapter 1 - Relations and Functions>Exercise>Q 59
The function fx is one-to-one and defined such that f(x)=x2−6x+13, x≥k,x∈R,k∈R, then f is