Class 11 Maths | Relations and Functions | NCERT Exercise 2.1 Solutions | Lecture 2

In this video, I have solved all the questions of Class 11 Maths NCERT Exercise 2.1 (Relations and Functions) with detailed step-by-step explanations.
This is Lecture 2 of the chapter Relations and Functions, where each question is solved clearly for better understanding.

✨ What you will learn in this video:
NCERT Exercise 2.1 complete solutions (Class 11 Maths)
Concept of Cartesian product of sets
How to solve questions based on ordered pairs and product of sets
Tips to avoid common mistakes in exam


Timestamps (NCERT Ex 2.1 Solutions):

0:00 Introduction
0:26 Ex 2.1 Q1 | If (x/3 + 1, y-2/3) = (5/3, 1/3), find the values of x and y.
02:04 Ex 2.1 Q2 | If the set A has 3 elements and the set B = {3, 4, 5}, then find the number of elements in (A × B).
03:33 Ex 2.1 Q3 | If G = {7, 8} and H = {5, 4, 2}, find G × H and H × G.
05:20 Ex 2.1 Q4 | State whether each of the following statements are true or false. If the statement is false, rewrite it correctly.
08:47 Ex 2.1 Q5 | If A = {-1, 1}, find A × A × A.
11:27 Ex 2.1 Q6 | If A × B = {(a, x), (a, y), (b, x), (b, y)}. Find A and B.
13:19 Ex 2.1 Q7 | Let A = {1, 2}, B = {1, 2, 3, 4}, C = {5, 6} and D = {5, 6, 7, 8}. Verify the property.
19:53 Ex 2.1 Q8 | Let A = {1, 2} and B = {3, 4}. Write A × B. How many subsets will A × B have?
25:46 Ex 2.1 Q9 | Let A and B be two sets such that n(A) = 3 and n(B) = 2. If (x, 1), (y, 2), (z, 1) are in … (solution explained).
27:44 Ex 2.1 Q10 | The Cartesian product A × A has 9 elements among which are (-1, 0) and (0, 1). Find the set A.

📖 Chapter Details:
Class: 11
Subject: Mathematics
Chapter: Relations and Functions
Exercise: 2.1 (NCERT)

📚 Watch the complete video to understand Cartesian product of sets from the ground up!

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