CBSE Class 11 Maths Chapter 3 Exercise 3.3 Q23, Q24, Q25 | Chapter 3 Exercise 3.3 Solution NCERT

In this video, CBSE Class 11 Maths Chapter 3 Exercise 3.3 Q23, Q24, Q25 | Chapter 3 Exercise 3.3 Solution NCERT we are giving solution to questions 23, question 24, and question 25 of chapter 3.3 of Class 11 Mathematics.

This exercise deals with using trigonometric functions to prove some trigonometric identities.

Chapters :
0:00 : Introduction
0:25 : Question 23
09:15 : Question 24
12:30 : Question 25

Video Highlights:
1. In this video, we have solved Q23 to Q25 of Trigonometry Exercise 3.3.
2. Q23 deals with providing proof of the following : tan4x=
4 tan x (1 − tan ^2 x ) /(1 − 6 tan^2 x + tan 4^ x)
3. Q24 deals with providing proof of the following : cos4x=1–8sin^2 xcos^2 x
4 Q25 deals with providing proof of the following : cos6x=32cos^6x–48cos^4x+18cos^2x–1


These question check all the concept related to knowing values of Sin, Cos, Tan, Cot. Cosec, Sec being positive in which quadrant and deriving the values by revolving around axis in positive or negative direction. Also, some of the formulae which are required to solve this problem are :

CosC - CosD = - 2 Sin(C+D)/2*Sin(C-D)/2
Cos2x = Cos^2(x)-Sin^2(x) = 2 Cos^2(x) -1 = 1- 2Sin^2(x)
SinC - SinD =2 Cos(C+D)/2*Sin(C-D)/2
SinC + SinD =2 Sin(C+D)/2*Cos(C-D)/2
Tan2x = 2tanx/1-tan^2x

You will find solution to following queries in this video:
Chapter 3 Exercise 3.3 (Q23,Q24,Q5),
Trigonometric Functions Class 11 Maths NCERT
Chapter 3 Ex 3.3 q23,24,25
Trigonometric Functions Class 11 (NCERT MATHS)
Chapter 3 Trigonometric Functions Exercise 3.3 (Q23,Q24,Q25)
Class 11 Maths NCERT
Class 11 Maths Chapter 3 (Trigonometric Functions) Exercise 3.3 Q 23,24,25
Ex 3.3 Q23,24,25 Chapter 3 Trigonometric Functions Class 11 Maths Ncert
Class-11 Ex-3.3,Q-23,24,25(Trigonometric Functions) NCERT Math
Class 11th,Ex-3.3,Q 23,24,25 (Trigonometric Functions) Maths CBSE NCERT
Introduction Trigonometric Functions | Class 11 Maths Chapter 3 |
Trigonometric Functions CBSE Class 11 Math's NCERT Chapter 3

To see more on Trigonometry for Class 11 check below videos from this channel :

#cbseclass11thmaths #trigonometryclass11 #Exercise3.3

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Please watch: "Mastering Trigonometry : Comprehensive Guide to Trigonometric Functions and Identities"
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