Class 11 Maths NCERT solutions chapter 1

 

Class 11 Maths NCERT solutions chapter 1

Sets class 11 Notes have been prepared by HarMohit singh and He has used the most easiest way to solve each and every Questions. Those who are scared of Mathematics will definitely find them the easiest ones from all the websites. While Starting the Exercises we should always start with basics, Sir has explained Ch 1 Maths class 11 Basics before starting the Exercises. Here you will get Class 11 Maths NCERT solutions of chapter 1 for all boards (CBSE and all state boards).

Basic Concepts of SETS

 

 

Chapter 1 Exercise 1.1 class 11 Maths

Now we will start Sets Ex 1.1 class 11 Maths. Sets class 11 Notes are Prepared by AJAYTIWARI

Chapter 1 Exercise 1.2 class 11 Maths

Now we will start Sets Ex 1.2 class 11 Maths – Prepared by AJAY TIWARI

 

Chapter 1 Exercise 1.3 class 11 Maths

 

Chapter 1 Exercise 1.4 class 11 Maths

 

Venn Diagrams

Venn Diagrams class 11 Maths – Prepared by HarMohit Singh.

 

Chapter 1 Exercise 1.5 class 11 Maths

Now we will start Sets class 11 Ex 1.5 Maths – Prepared by  AJAY

 

Chapter 1 Exercise 1.6 class 11 Maths

Now we will start Sets class 11 Ex 1.6 Maths – Prepared by AJAY

 

Chapter 1 Miscellaneous Exercise class 11 Maths

Now we will start Sets Miscellaneous Exercise chapter 1 class 11 – Prepared by AJAY.

Sets class 11 Notes

Set – Set is a well defined collection of objects.

Example 1 – collection of first five even numbers

That is {2, 4, 6, 8, 10}

Example 2  – First 6 Natural Numbers

That is {1, 2, 3, 4, 5. 6}

Types of Sets:

1. Finite sets

First 3 odd numbers – {1, 3, 5}

Collection of Vowels – {a, e, i, o, u}

2. Infinite Set

Collection of odd numbers – {1, 3, 5, 7, 9, 11 , . . .}

Collection of even numbers = {2, 4, 6, 8, . . .}

3. Equal Sets

A = {1, 3, 5} ,   B = {3, 1, 5}

They both are same and hence both are Equal

4. Equivalent Sets

If the number of elements in different sets are same/equal then they are called Equivalent Sets.

A = {1, 3, 5} ,  B = {5, 8, 9}

Number of elements in both the sets are same and hence A,B are called Equivalent sets.

5. Empty set or Null set

A = {} or A = Φ (phi)

Those sets which don’t have any elements in them are called Empty set or Null set or Void Set

6. Singleton set

Those sets which have only single element are called Singleton set.

A= {3} ,   B = {7}