In this comprehensive video lecture, Ashish Sir from MathYug takes you through Chapter 1: Sets from the Class 11 NCERT Maths textbook. Whether you’re just starting this topic or revising for exams, this video is a perfect step-by-step guide that explains every concept clearly and solves all questions from Exercises 1.1 and 1.2 with detailed reasoning.
What’s Covered in the Video
The lecture begins with the basic idea of a set — a well-defined collection of objects — and gradually moves into set representation, including:
- Roster Form
- Set-builder Form
- Listing Method
- Property Method
Ashish Sir also explains the concept of “∈” (belongs to) in simple terms to make sure you understand the symbolic language of sets.
Exercise 1.1 Breakdown
Starting with Question 1, the video walks through identifying sets and their properties. As the lecture progresses, you’ll explore:
- Special Types of Sets: null (empty), singleton, finite, infinite, and equal sets.
- Step-by-step solutions to Questions 2 to 6, with plenty of examples and tips to avoid common mistakes.
Key timestamps:
- 00:00:01 — Meaning of Sets
- 00:03:38 — NCERT Exercise 1.1 Question 1
- 00:09:58 — Roster Form, Listing Method, Property Method, Set Builder Form
- 00:20:51 — “Belongs to” Concept
- 00:23:21 — Question 2
- 00:25:01 — Question 3
- 00:33:31 — Some Special Sets
- 00:38:11 — Question 4
- 00:48:41 — Question 5
- 00:53:21 — Question 6
- 00:59:21 — Null Sets / Empty Sets / Void Sets
Exercise 1.2 Overview
This section focuses on practical classification of sets:
- Finite and Infinite Sets
- Equal Sets — when two sets are identical in elements
- All 6 NCERT questions are covered thoroughly.
Key timestamps:
- 01:01:51 — Question 1
- 01:04:01 — Question 2 (Finite Sets and Infinite Sets)
- 01:05:51 — Question 3
- 01:08:21 — Equal Sets
- 01:09:41 — Question 4
- 01:11:01 — Question 5
- 01:13:11 — Question 6
Each question is solved slowly and clearly so you can pause, understand, and practice.
Learn with MathYug
If you found this lecture helpful, MathYug offers a dedicated Class 11 Maths Membership taught by Ashish Sir. The membership includes:
- Full video coverage of all NCERT chapters
- Exercise-by-exercise solutions with theory explanations
- Practice resources for CBSE and competitive exams
You can explore the full course at mathyug.com/class-11-maths.
Final Thoughts
This video is not just about solving NCERT questions — it’s about understanding why the answers work. Ashish Sir’s teaching style is clear, patient, and ideal for students at any level. If you’re studying Sets in Class 11, this lecture is a must-watch for both concepts and confidence.
Watch now and follow MathYug (Ashish Kumar — Let’s Learn) along with your NCERT book!