Exercise 11.1 Class 12 Maths || Class 12 Three Dimensional Geometry Exercise 11.1

Notes PDF
https://drive.google.com/file/d/1hfKgN0BigIFtY3HJ95TaII57eXjZ05ZZ/view?usp=share_link

Welcome to our YouTube lecture on Class 12, Chapter 11, Three-Dimensional Geometry, from NCERT. In this video, we will introduce 3D geometry and direction cosines and provide solutions for examples before exercise 11.1 and all the problems from exercise 11.1.

Three-dimensional geometry is a branch of mathematics that deals with shapes and objects in three-dimensional space. This chapter covers various topics, including the distance formula, section formula, and the equation of a line in space.

We will begin by introducing 3D geometry and discussing the concept of direction cosines, which are used to determine the direction of a line or vector in three-dimensional space. We will then move on to providing solutions for the examples before exercise 11.1, helping you to better understand the concepts covered in this chapter.

Next, we will dive into exercise 11.1, providing detailed explanations and step-by-step solutions for all the problems. We will also be showcasing a variety of problem-solving strategies that will help you better understand the concepts covered in this chapter.

By the end of this video, you should have a solid understanding of 3D geometry and be well-prepared to tackle any problems related to this topic. So let's get started!

Timestamps
00:00:00 Recap on Vectors
00:05:57 Direction Cosines of a line
00:11:30 Direction Cosines of a line joining two points
00:16:14 NCERT Chapter 11 Example 01
00:17:30 NCERT Chapter 11 Example 02
00:19:15 NCERT Chapter 11 Example 03
00:21:50 NCERT Chapter 11 Example 04
00:24:38 NCERT Chapter 11 Example 05
00:30:50 NCERT Exercise 11.1 Question 1
00:32:10 NCERT Exercise 11.1 Question 2
00:34:42 NCERT Exercise 11.1 Question 3
00:40:06 NCERT Exercise 11.1 Question 4
00:42:22 NCERT Exercise 11.1 Question 5

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