One-One, Many-one, Onto, Into Functions Class 12 Maths Chapter 1

by | May 2, 2021

Topics/Questions discussed in this video:

00:00:01 Introduction to this part of lecture

00:01:32 One – One or Injective and Many – One

00:22:23 Question 3 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. Show that f is one-one.

00:24:50 Onto (Surjective) and Into