CBSE Class 11 Maths Chapter 3 Exercise 3.3 Q17, Q18, Q19 | Chapter 3 Exercise 3.3 Solution NCERT

In this video, CBSE Class 11 Maths Chapter 3 Exercise 3.3 Q17, Q18, Q19 | Chapter 3 Exercise 3.3 Solution NCERT we are giving solution to questions 17, question 18, and question 19 of chapter 3.3 of Class 11 Mathematics. This exercise deals with using trigonometric functions to prove some trigonometric identities. Chapters : 0:;00 : Introduction 0:30 : Question 17 04:12 : Question 18 07:24 : Question 19 Video Highlights: 1. In this video, we have solved Q17 to Q19 of Trigonometry Exercise 3.3. 2. Q17 deals with providing proof of the following : (Sin5x +Sin3x)/(Cos5x+Sin6Cos3x) = tan4x 3. Q18 deals with providing proof of the following : (Sinx-Siny)/(Cosx+Cosy) = tan (x-y)/2 4 Q19 deals with providing proof of the following : (Sinx+Sin3x)/(Cosx+Cos3x) = tan2x 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 You will find solution to following queries in this video: Chapter 3 Exercise 3.3 (Q17,Q18,Q19), Trigonometric Functions Class 11 Maths NCERT Chapter 3 Ex 3.3 q17,18,19 Trigonometric Functions Class 11 (NCERT MATHS) Chapter 3 Trigonometric Functions Exercise 3.3 (Q17,Q18,Q19) Class 11 Maths NCERT Class 11 Maths Chapter 3 (Trigonometric Functions) Exercise 3.3 Q 17,18,19 Ex 3.3 Q17,18,19 Chapter 3 Trigonometric Functions Class 11 Maths Ncert Class-11 Ex-3.3,Q-17,18,19(Trigonometric Functions) NCERT Math Class 11th,Ex-3.3,Q 17,18,19 (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 : 1.    • Can you solve this in 10 seconds? |Tr...   : Can you solve this in 10 seconds? |Trigonometry Trick Question | Trigonometry CBSE Class 11 2.    • Trigonometry | Find the value of expr...   : Trigonometry|Find the value of expression tan1°*tan2*..*tan89° 3.    • CBSE Class 11 Mathematics Exercise 3....   : CBSE Class 11 Exercise 3.2 Chapter 3 Q1 and Q2 | NCERT Exercise 3.2 Solution Q1 & Q2 4.    • CBSE Class 11 Mathematics| Solution t...   : CBSE Class 11 Mathematics| Solution to NCERT Mathematics Class 11| Exercise 3.2 Chapter 3 Q3, Q4, Q5 5.    • How to Solve CBSE Class 11 Exercise 3...   : How to Solve CBSE Class 11 Exercise 3.2 Chapter 3 Q6, Q7, Q8, Q9, Q10 | NCERT Solution Exercise 3.2 #cbseclass11thmaths #trigonometryclass11 #Exercise3.3 ~-~~-~~~-~~-~ Please watch: "Mastering Trigonometry : Comprehensive Guide to Trigonometric Functions and Identities"    • Mastering Trigonometry : Comprehensiv...   ~-~~-~~~-~~-~