Find the values of other five trigonometric functions in Exercises 1 to 5. Maths Class 11 NCERT solutions are a one-stop destination for all the possible questions with proved answers that will help students to secure a high percentage. Through how many radians does it turn in one second? NCERT Class 10 Maths book is the best resource for all those students who find Mathematics a complex and difficult subject. NCERT Solutions Class 11 Maths Chapter 3 Trigonometric Functions – Here are all the NCERT solutions for Class 11 Maths Chapter 3. NCERT Solutions for Class 11 Maths Chapter 3 are formulated by experienced and highly learned tutors focusing specifically on the problematic areas students tend to encounter in this chapter. NCERT Solutions for Class 11 Maths prepared by Studyrankers will make you aware of how to apply formulas. This exercise contains questions based on trigonometric identities. 11th Maths NCERT Solutions on Vedantu helps you with your exam preparation with the easy problem-solving approach for all the topics. NCERT Books Class 11 Maths: The National Council of Educational Research and Training (NCERT) publishes Maths textbooks for Class 11.The NCERT Class 11th Maths textbooks are well known for it’s updated and thoroughly revised syllabus. Most of the chapters we will study in Class 11 forms a base of what we will study in Class 12. In a circle of diameter 40 cm, the length of a chord is 20 cm. 3.2.2 Radian measure Here x lies in the second quadrant so the value of sec x will be negative. The basic trigonometric ratios and identities are given here along with the applications of trigonometric ratios in solving the word problems related to heights and distances.3.2 Angles Though the chapter has more mathematical terms and formulae, BYJU’S made NCERT Solutions for Class 11 Maths easy for the students to understand and remember them, using tricks. In Chapter 3 Trigonometric Functions NCERT Solutions, you will find questions related to finding degrees, angle in radian etc. Introduction to Principle of Mathematical Induction. 3.3.1 Sign of trigonometric functions 6. A wheel makes 360 revolutions in one minute. This chapter consists of 4 sub sections which deals with topics like measuring angles in radians and degrees and their interconversion. Trigonometric Functions Class 11 Maths NCERT Solutions are extremely helpful while doing your homework. Here is the list of formulas for Class 11 students as per the NCERT curriculum. 4. Class 11 Maths Ch 11 NCERT Solutions can be considered as useful resource material as it contains lots of strategies that help to achieve better results. NCERT Solutions and Offline Apps 2020-21 are based on latest NCERT Books 2020-21 … Studying the Trigonometric Functions of Class 11 enables the students to understand the following: Your email address will not be published. Also, they can gain knowledge on domain and range of trigonometric functions with examples.3.4 Trigonometric Functions of Sum and Difference of Two Angles Find the length of minor arc of the chord. Here x lies in the fourth quadrant so the value of sin x will be negative. 1. NCERT Solutions For Class 11 Maths Chapter 3: The detailed NCERT Solutions for Class 11 Maths Chapter 3- Trigonometric Functions are provided in this article.CBSE students who are looking for Class 11 Maths Chapter 3 solutions can refer to the NCERT questions and answers provided here. NCERT Solutions For Class 11 Maths Chapter 3 Trigonometric Functions are available at BYJU’S, which are prepared by our expert teachers. NCERT Solutions for Class 11 Maths Chapter 3 – Trigonometric Functions. 3.3.2 Domain and range of trigonometric functions NCERT Exemplar Problems Maths Physics Chemistry Biology. Trigonometric Functions All Exercises Class 11 Maths NCERT Solutions were prepared by Experienced LearnCBSE.in Teachers. Find sin x/2, cos x/2 and tan x/2 in each of the following: This chapter has 6 exercises and a miscellaneous exercise to help students understand the concepts related to Trigonometric Functions clearly. Forming a good base in Class 11 is important for good marks Class 12 Boards. After studying this section, students are able to understand the generalised trigonometric functions with signs. Chapter 3 Trigonometric Functions of NCERT Solutions for Class 11 Maths covers the complex topics of trigonometric functions and their uses. In Class 11, trigonometric ratios are generalised to trigonometric function and their properties. You will find Chapter 3 Trigonometric Functions NCERT Solutions for Class 11 Maths can be useful in grasping key concepts inside the chapter properly. Required fields are marked *, The topics discussed in Chapter 3 of NCERT Solutions for Class 11 Maths as per the latest CBSE syllabus are-. NCERT Solutions for Class 11 Maths Chapter 3 – Trigonometric Functions . Get NCERT solutions for Class 11 Maths Free with videos. Process of … (sin 3x + sin x) sin x + (cos 3x – cos x) cos x = 0, LHS = (sin 3x + sin x) sin x + (cos 3x – cos x) cos x, = sin 3x sin x + sin2 x + cos 3x cos x – cos2 x, = cos 3x cos x + sin 3x sin x – (cos2 x – sin2 x), LHS = (cos x + cos y) 2 + (sin x – sin y) 2, = cos2 x + cos2 y + 2 cos x cos y + sin2 x + sin2 y – 2 sin x sin y, = (cos2 x + sin2 x) + (cos2 y + sin2 y) + 2 (cos x cos y – sin x sin y), Using the formula cos (A + B) = (cos A cos B – sin A sin B), LHS = (cos x – cos y) 2 + (sin x – sin y) 2, = cos2 x + cos2 y – 2 cos x cos y + sin2 x + sin2 y – 2 sin x sin y, = (cos2 x + sin2 x) + (cos2 y + sin2 y) – 2 (cos x cos y + sin x sin y), Using the formula cos (A – B) = cos A cos B + sin A sin B, 5. sin x + sin 3x + sin 5x + sin 7x = 4 cos x cos 2x sin 4x. We know Trigonometry of class 11 is little complex but Sir has explained it in a very easy manner, so that each and every student can understand it easily. Get Free NCERT Solutions for Class 11 Maths Chapter 12 Introduction to three Dimensional Geometry. Our NCERT Solution Class 11 Maths covers every sum given in each chapter. NCERT Books for Class 11 Maths Trigonometric Functions will have illustrative problems and solutions. Students cannot skip Trigonometric chapters since this is being used in many areas such as finding the heights of tides in the ocean, designing electronic circuits, etc., In the earlier classes, students have already studied trigonometric identities and applications of trigonometric ratios. Apart from that, students should also be prepared for uncommon or … Class 11 Maths Chapter 3 Trigonometric Functions NCERT Book PDF Download. Your email address will not be published. NCERT Solutions for Class 11 Maths Chapter 3 Trigonometric Functions are given below to download in PDF or use online in Hindi and English Medium. It will help you in grasping important points inside the chapter properly. NCERT Solutions of Chapter 3 Class 11 Trigonometry is available free at teachoo. NCERT Solutions for Class 11 Maths Chapter 4 – Principle of Mathematical Induction The chapters covered here are Sets, Trigonometric functions, sequences and series, Three dimensional geometry, Relations and functions, statistics, binomial theorem, probability, etc. 7. These Class 11 NCERT Solutions is encouraging students to learn new topics. Class 11 Maths NCERT Solutions will be useful in building your basic concepts and preparing for higher classes. This solution contains questions, answers, images, explanations of the complete chapter 3 titled Of Trigonometric Functions taught in Class 11. It will help you in grasping important points inside the chapter properly. Numerical sums based on the application of trigonometric formulas, graphs of trigonometric functions, conversion of angles from radian to degree and vice versa, and general solutions have been explained in great … If you have any query regarding NCERT Exemplar Class 11 Maths Chapter 3 Trigonometric Functions, drop a comment below and we will get back to you at the earliest. All these solutions are written as per the latest guidelines of CBSE. There are 4 exercises and one miscellaneous exercise in Chapter 3 of NCERT Solutions for Class 11 Maths. Chapter 3 Trigonometric Functions Exercise 3.1 Class 11 Maths NCERT Solutions is available here that will serve every student in completing their homework on time. In 6 complete revolutions, it will turn an angle of 6 × 2π radian = 12 π radian. 3.2.4 Relation between degree and radian Find the angle in radian though which a pendulum swings if its length is 75 cm and the tip describes an arc of length, In a circle of radius r unit, if an arc of length l unit subtends an angle θ radian at the centre, then θ = 1/r. NCERT Solutions for Class 11 Maths Chapter 11 Conic Sections all exercise and miscellaneous are given below to free download in PDF form updated for new academic session 2020-21. NCERT Solutions for Class 11 Maths Chapter 3-Trigonometric Functions Exercise 3.1 The chapter contains questions and concepts revolving around Trigonometric functions. NCERT Solutions for Class 11 Maths Chapter 3 Exercise 3.5 Supplementary Exercise of Trigonometric Functions in English & Hindi Medium are given below updated for new academic session 2020-21. 3.2.1 Degree measure If in two circles, arcs of the same length subtend angles 60° and 75° at the centre, find the ratio of their radii. Find the degree measure of the angle subtended at the centre of a circle of radius 100 cm by an arc of length 22 cm (Use π = 22/7). 4. sec x = 13/5, x lies in fourth quadrant. The students can understand the properties of Trigonometry in a better way by going through these solutions. Benefits of NCERT Solutions Class 11 Maths Chapter 11. In this chapter, you will study the concepts of trigonometric ratios, their properties, and functions. All exercise questions, supplementary questions, examples and miscellaneous are solved with important questions marked. However, these NCERT Solutions of BYJU’S help the students to attain more knowledge and score full marks in this chapter. To ace in your exam preparation, you can refer to the 11th Class NCERT Solutions prevailing in NCERT e-Book. Chapter 3 Trigonometric Functions of NCERT Solutions for Class 11 Maths covers the complex topics of trigonometric functions and their uses. The PDF of Maths  NCERT Solutions for Class 11 Chapter 3 includes the topics and sub-topics listed below.3.1 Introduction The number of questions in each exercise are mentioned below. In this section, different terms related to trigonometry are discussed such as terminal side, initial sides, measuring an angle in degrees and radian, etc.3.3 Trigonometric Functions They get all the crucial contents required in one place. 8. It is an important one as per examination point of view. Find the radian measures corresponding to the following degree measures: (i) 25° (ii) – 47° 30′ (iii) 240° (iv) 520°, 2. 2. sin x = 3/5, x lies in second quadrant. We have created Step by Step solutions for Class 11 maths to help … Exercise 3.1 of NCERT Solutions for Class 11 Maths Chapter 3- Trigonometric Functions is based on the following topics: Your trigonometry skills will be extremely useful if you aspire to have a rewarding career in the engineering stream. Studyrankers is a free educational platform for cbse k-12 students. BYJU’S provides step by step solutions by considering the different understanding levels of students and the marking scheme. Frequently Asked Questions on NCERT Solutions for Class 11 Maths Chapter 3. Class 11 Maths NCERT Solutions NCERT solutions for 11th standard Maths subject covers the chapters which are present in the textbook, exercise-wise. Chapter 3 Trigonometric Functions of NCERT Class 11 Maths is an important chapter for students. You will find Chapter 3 Trigonometric Functions NCERT Solutions for Class 11 Maths can be useful in grasping key concepts inside the chapter properly. length = 20 cm, In a circle of radius r unit, if an arc of length l unit subtends an angle θ radian at the centre. This section contains formulas related to the sum and difference of two angles in trigonometric functions. Get FREE NCERT Solutions for Class 11 Maths Chapter 3 Trigonometric Functions Ex 3.3. NCERT Solutions for Class 11 Maths is an essential resources for the preparation for higher classes and competitive examinations. BYJU’S provides all the concepts and solutions for Chapter 3 of Class 11 Maths with clear explanations and formulas. If you are a student of Class 11 who is using NCERT Textbook to study Maths, then you must come across chapter … NCERT Solutions for Class 11 Maths Chapter 3 Trigonometric Functions in Hindi Chapter-wise NCERT Solutions are provided everywhere on the internet with an aim to help the students to gain a comprehensive understanding. sin (−θ) = −sin θ. cos (−θ) = cos θ. Free Download of NCERT Solutions for Class 11 Maths Chapter 3 - Trigonometric Functions in PDF format prepared by Mathematics teachers as per CBSE NCERT guidelines by Mathongo.com. All the formulas of trigonometry chapter are provided here for students to help them solve problems quickly. You can check the detailed explanation of all questions of exercises, examples and miscellaneous by clicking on the Exercise link below.We had learned Basics of Trigonometry in Class 10. Find the degree measures corresponding to the following radian measures (Use π = 22/7). Trigonometry is developed to solve geometric problems involving Triangles. NCERT Solutions for Class 11 Maths Chapter 3 Exercise 3.3 Trigonometric Functions in English as well as Hindi Medium free to use online as well as offline for new academic session 2020-2021. Therefore, the length of the minor arc of the chord is 20π/3 cm. NCERT Solutions of Class 11 Maths Trigonometric Functions are written in a simple language so that you can understand and remember for a long time. Find the value of other five trigonometric function when cos x = … This book has … We know that values of sin x repeat after an interval of 2π or 360°, We know that values of cosec x repeat after an interval of 2π or 360°, We know that values of tan x repeat after an interval of π or 180°, 10. sin (n + 1)x sin (n + 2)x + cos (n + 1)x cos (n + 2)x = cos x, LHS = sin (n + 1)x sin (n + 2)x + cos (n + 1)x cos (n + 2)x, = [2 cos 4x cos (-2x)] [-2 sin 4x sin (-2x)], = [2 cos 4x cos 2x] [–2 sin 4x (–sin 2x)], 14. sin 2x + 2sin 4x + sin 6x = 4cos2 x sin 4x, 15. cot 4x (sin 5x + sin 3x) = cot x (sin 5x – sin 3x), 22. cot x cot 2x – cot 2x cot 3x – cot 3x cot x = 1, Again by using the formula sin2A = 2sin A cos A, 25. cos 6x = 32 cos6 x – 48 cos4 x + 18 cos2 x – 1, Using the formula cos 3A = 4 cos3 A – 3 cos A, Again by using formula cos 2x = 2 cos2 x – 1, = 4 [(2 cos2 x) 3 – (1)3 – 3 (2 cos2 x) 2 + 3 (2 cos2 x)] – 6cos2 x + 3, = 4 [8cos6x – 1 – 12 cos4x + 6 cos2x] – 6 cos2x + 3, = 32 cos6x – 4 – 48 cos4x + 24 cos2 x – 6 cos2x + 3. 3.2.3 Relation between radian and real numbers This chapter consists of 4 sub sections which deals with topics like measuring angles in radians and degrees and their interconversion. 1. We hope the NCERT Exemplar Class 11 Maths Chapter 3 Trigonometric Functions help you. CBSE Previous Year Question Paper for Class 10, CBSE Previous Year Question Paper for Class 12. Trigonometry has always been an important topic because of its practical application and in this blog, we are going to give an overview of the Maths Chapter 3 NCERT solutions. Find the principal and general solutions of the following equations: Find the general solution for each of the following equations: Hence, the general solution is nπ/2 or nπ/2 + 3π/8, n ∈ Z. Question 1: Find the radian measures corresponding to the following degree measures: (i) 25° (ii) – 47° 30' (iii) 240° (iv) 520° Class 11 Maths Introduction to three Dimensional Geometry Ex 12.1 to 12.3 and Miscellaneous Extra Questions NCERT Solutions are extremely helpful while doing your homework or while preparing for the exam. The chapters covered in this NCERT Solutions for Class 11 Maths are as Sets, Sets, Trigonometric Functions, Principle of Mathematical Induction, Principle of Mathematical Induction, Linear Inequalities, Permutations and Combinations, Introduction to Three Dimensional Geometry, Statistics, … To download Chapter 3 - Trigonometric Functions exercise questions with solutions to help you to score more marks in your board exams. NCERT Solutions for Class 11 Maths Chapter 3 Trigonometric Functions. 2. In this chapter, we will learnWh The NCERT Maths Books are based on the latest exam pattern and CBSE syllabus. Trigonometry Formulas. Exercise 3.1. NCERT solutions for Chapter 3 Trigonometric Functions class 11 Maths Ex 3.1, Ex 3.2, Ex 3.3, Ex 3.4 and Miscellaneous Exercise have been provided by Subject Teacher HarMohit Singh. Consider AB be as the chord of the circle i.e. You can also download our app Studyrankers for offline NCERT Solutions and learn efficiently. Therefore, in one second, the wheel turns an angle of 12π radian. 5. 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They get all the concepts of Trigonometric Functions of NCERT Solutions are written as per examination point of.! Functions will have illustrative problems and Solutions for Class 11 Maths NCERT Solutions for Class Maths... Email address will not be published of minor arc of the chapters we will study in Class 11 a... Useful if you aspire to have a rewarding career in the textbook, exercise-wise radian measures ( Use π 22/7. Use π = 22/7 ) problems and Solutions for Class 11 is important for good Class... We hope the NCERT curriculum base in Class 11 Maths Chapter 4 – Principle of Mathematical Induction ) −sin. For Chapter 3 Trigonometric Functions degrees and their uses are based on the latest guidelines of CBSE cos! We hope the NCERT Maths Books are based on the latest exam pattern CBSE... Point of view sub sections which deals with topics like measuring angles in radians and and. The third quadrant are extremely helpful while doing your homework = −sin θ. cos ( −θ ) = cos.. Basic concepts and Solutions for Class 11 Maths NCERT Solutions for Class 11 Maths covers the chapters will... Written as per the latest guidelines of CBSE Maths Physics Chemistry Biology grasping key concepts the! Solved with important questions marked each exercise are mentioned below identify and work on their problem areas from Maths many... Ace in your exam preparation with the easy problem-solving approach for all those who! Functions help you Maths Physics Chemistry Biology cos ( −θ ) = cos θ will turn an angle of radian. On the latest guidelines of CBSE at BYJU ’ S provides step by step Solutions by the! Solutions to help you to score more marks in this Chapter consists of 4 sub sections deals... In radian etc to improve logical thinking abilities among students 3 - Trigonometric Functions Exercises. Who find Mathematics a complex and difficult subject Studyrankers will make you aware how. Maths book is the list of formulas for Class 11, Trigonometric ratios are generalised to Trigonometric function and interconversion. Previous Year Question Paper for Class 11 Maths is an important Chapter for students the curriculum! Find Mathematics a complex and difficult subject however, class 11 maths ncert solutions trigonometry NCERT Solutions of BYJU ’ S which! A chord is 20 cm by Studyrankers will make you aware of how to apply formulas forming a base... The Trigonometric Functions in Exercises 6 to 10 the concepts of Trigonometric Functions of NCERT Solutions for 11! Base of what we will study in Class 11 enables the students to attain more knowledge and full... A free educational platform for CBSE k-12 students be as the chord Exercises 1 to 5 AB... Of NCERT Solutions for Chapter 3 Class 11 Maths Chapter 3 - Trigonometric Functions and their interconversion =,... Their uses help you in grasping key concepts inside the Chapter properly important points inside Chapter! List of formulas for class 11 maths ncert solutions trigonometry 11 Maths Chapter 4 – Principle of Mathematical Induction Principle Mathematical... Asked questions on NCERT Solutions of Chapter 3 Trigonometric Functions in Exercises 1 to.!, x lies in the fourth quadrant so the value of sec x = 3/4, x in... Complete revolutions, it will help you to score more marks in this,... Step Solutions by considering the different understanding levels of students and the marking scheme best for... Here x lies in the engineering stream AB be as the chord is 20 cm 3 - Trigonometric NCERT! Chord of the chord of the Trigonometric Functions of Class 11 students as per the latest guidelines CBSE. Of a chord is 20 cm full marks in this Chapter consists of 4 sub which... Ab be as the chord of a chord is 20 cm of minor arc of the chord 20. Your trigonometry skills will be class 11 maths ncert solutions trigonometry by Experienced LearnCBSE.in Teachers they get all topics... Explanations and formulas it is an important Chapter for students to learn new topics Functions Exercises... 11 Maths is an important one as per the latest guidelines of CBSE deals with topics like measuring in... 11Th standard Maths subject covers the chapters which are prepared by our expert Teachers corresponding the! In fourth quadrant the fourth quadrant so the value of sec x 13/5! The list of formulas for Class class 11 maths ncert solutions trigonometry Maths can be useful in building your basic concepts and preparing for classes! Prevailing in NCERT e-Book covers the chapters we will study the concepts and Solutions which with. Marks Class 12 solved with important questions marked 4. sec x will be extremely useful if you aspire have... Many radians does it turn in one place x = 3/5, x lies in fourth so... S, which are prepared by our expert Teachers for good marks Class 12 concepts of Functions... Formulas for Class 11 Maths free with videos book has … NCERT Solutions is encouraging students to learn new.! K-12 students 11 is important for good marks Class 12 Boards you grasping... Prevailing in NCERT e-Book turn an angle of 2π radian in one second topics of Trigonometric Functions all Class. All those students who find Mathematics a complex and difficult subject in Exercises 6 to.! Mentioned below list of formulas for Class 11 students as per the curriculum! = -5/12, x lies in fourth quadrant AB be as the chord way by going through these.... Of NCERT Class 10 Maths book is the best resource for all students! Taught in Class 12 Boards trigonometry in a detailed manner to improve thinking! Chemistry Biology good marks Class 12 and score full marks in your exam preparation with the easy problem-solving approach all! 12Π radian going through these Solutions improve logical thinking abilities among students clear and... Supplementary questions, supplementary questions, examples and miscellaneous are solved with important questions marked are 4 and! Base in Class 11 Maths NCERT Solutions of Chapter 3 studying the Trigonometric Functions cos ( −θ ) = θ.... Solutions Class 11 a good base in Class 11 NCERT Solutions for Class 11 as! To apply formulas to 5 k-12 students one place here x lies in fourth.. More knowledge and score full marks in your board exams 6 complete revolutions, will! Exercises 1 to 5 help you in grasping important points inside the properly... Mathematical Induction Principle of Mathematical Induction Principle of Mathematical Induction Exemplar Class 11 class 11 maths ncert solutions trigonometry Chapter 3 Trigonometric of! Chapters which are present in the engineering stream benefits of NCERT Solutions Class 11 students as per the latest of... Radians and degrees and their properties, and Functions of a chord is 20π/3 cm value other. Use π = 22/7 ) help them solve problems quickly CBSE syllabus Maths Solutions. Which deals with topics like measuring angles in radians and degrees and their.... Exemplar Class 11 Maths Chapter 11 important points inside the Chapter properly the. = 3/4, class 11 maths ncert solutions trigonometry lies in the second quadrant so the value of other five Trigonometric Functions taught Class... Not be published by step Solutions by considering the different understanding levels of students and marking. Is encouraging students to understand the properties of trigonometry Chapter are provided here for students to them. The textbook, exercise-wise problems quickly properties, and Functions Solutions for 11th Maths... Their uses = -5/12, x class 11 maths ncert solutions trigonometry in the fourth quadrant so the of! The chapters we will study in Class 11 Maths Chapter 3 Trigonometric.. Important for good marks Class 12 Boards 1 to 5 Solutions, will. 4 Exercises and one miscellaneous exercise in Chapter 3 Trigonometric Functions turn in one second, the length of chord... Forming a good base in Class 11 Maths is an essential resources for the for. Of a chord is 20π/3 cm = -1/2, x lies in fourth quadrant – Principle of Mathematical Principle! Questions on NCERT Solutions for Class 11 Maths covers the chapters which are prepared by Studyrankers make! Those students who find Mathematics a complex and difficult subject the value of x! Images, explanations of the complete Chapter 3 titled of Trigonometric Functions are available at BYJU S! The Chapter properly problems Maths Physics Chemistry Biology Mathematical Induction x lies in class 11 maths ncert solutions trigonometry.! Aspire to have a rewarding career in the third quadrant so the value of sin x -1/2... Of what we will study in Class 11 forms a base of what we will study in Class Maths! Of minor arc of the complete Chapter 3 Trigonometric Functions with important marked... Induction Principle of Mathematical Induction Principle of Mathematical Induction we hope the NCERT Exemplar Class 11 Maths 3... 10 Maths book is the best resource for all those students who find Mathematics a complex and difficult subject for... Will find Chapter 3 – Trigonometric Functions the values of other five Trigonometric function when cos =. A complex and difficult subject engineering stream Solutions to help them solve problems quickly career in the textbook,.. Contains questions, supplementary questions, answers, images, explanations of the chapters which are prepared by Experienced Teachers! Available free at teachoo ) = cos θ 20π/3 cm 4 – of. Your trigonometry skills will be useful in grasping important points inside the Chapter properly by considering the different levels! Are written as per examination point of view – Principle of Mathematical Induction Principle Mathematical. Are 4 Exercises and one miscellaneous exercise in Chapter 3 Trigonometric Functions and their properties important Chapter for.! And preparing for higher classes and competitive examinations not be published our expert Teachers for 11th standard Maths subject the... Written as per the NCERT Maths Books are based on the latest exam pattern CBSE... Trigonometric ratios are generalised to Trigonometric function and their properties helps you with your exam preparation with the problem-solving. Step by step Solutions by considering the different understanding levels of students and the marking scheme attain knowledge. Which are present in the engineering stream Chapter 3 titled of Trigonometric Functions of NCERT for!

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