CBSE Class 12 Sample Paper for 2022 Boards (MCQ Based - for Term 1)

CBSE Class 12 Sample Paper for 2021 Boards →
Class 12
Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Question 37 - CBSE Class 12 Sample Paper for 2022 Boards (MCQ Based - for Term 1) - Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Last updated at April 16, 2024 by

Let A = {1, 2, 3}, B = {4, 5, 6, 7} and let 𝑓 = {(1, 4), (2, 5), (3, 6)} be a function from A to B. Based on the given information, 𝑓 is best defined as:

(a) Surjective function          (b) Injective function

(c) Bijective function             (d) function

 

This question is inspired from Ex 1.2 , 6 - Chapter 1 Class 12 - Relation and Functions

Slide96.JPG

Slide97.JPG

Go Ad-free

Transcript

Question 37 Let A = {1, 2, 3}, B = {4, 5, 6, 7} and let 𝑓 = {(1, 4), (2, 5), (3, 6)} be a function from A to B. Based on the given information, 𝑓 is best defined as: (a) Surjective function (b) Injective function (c) Bijective function (d) function Injective Injective means one-one Since all elements have unique image ∴ R is injective Surjective Surjective means onto Since all elements B do not have a pre-image ∴ R is not surjective So, the correct answer is (B)

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo