# NCERT Solutions for Class 10 Maths Chapter 8 Introduction to Trigonometry (Ex 8.4) Exercise 8.4

## NCERT Solutions for Class 10 Maths Chapter 8 Introduction to Trigonometry (Ex 8.4) Exercise 8.4

**Study without Internet (Offline)**

**free!**

Q1. What is Trigonometry? What are real-life applications of Trigonometry?

Ans: Trigonometry is defined as a study of triangles. It is a branch of Mathematics that involves calculations based on the relationship between side lengths and angles of a triangle. Trigonometry and its functions have a plethora of applications in our daily life. For example, it is used to measure the distance between any two landmarks. It is also used to measure the height of a building or a pole or difference of heights between two buildings, etc. Trigonometry finds its application in the satellite navigation system or in the field of astronomy to measure the distance of nearby stars. Trigonometry is a branch of Maths that is used in almost every field including Medical Imaging, Electronics, Mechanical Engineering, Civil Engineering, architecture, game development, etc.

Q2. Why exercise-wise NCERT Solutions for Class 10 Maths Chapter 8 Introduction to Trigonometry is an important study material?

Ans: Class 10 Maths Chapter 8- Introduction to Trigonometry is a lengthy and complex chapter of NCERT syllabus which requires rigorous practice and right guidance to master the concepts. NCERT Solutions for Class 10 Maths Chapter 8 provides the knowledge of how to solve questions based on Trigonometric concepts. These solutions are prepared as per the latest syllabus and board guidelines. The best in-house teachers provide solutions for each exercise of the 8th chapter. These solutions are prepared in a step-by-step manner to explain how to solve even the most complex questions of the chapter. These solutions also help to clear all the doubts regarding the chapter.

Q3. Where can I find NCERT Solutions for Class 10 Chapter 8 Introduction to Trigonometry Exercise 8.4?

Ans: Students can download free NCERT Solutions for Class 10 Maths Chapter 8 Introduction to Trigonometry Exercise 8.4 and other exercises on Vedantu. These solutions are available in high-quality PDF format designed by tutors who are experts in their fields. Students are provided with explanations of all the questions in a step-by-step manner. Vedantu is known to cater to premium NCERT Solutions designed as per student’s requirements. Students can easily clear their doubts referring to these solutions. Students can also register for LIVE Classes on Vedantu and get expert guidance on difficult chapters like Trigonometry.

Q4. What is meant by Trigonometric Identities? What is Class 10 Exercise 8.4 based on?

Ans: As per Exercise 8.4, a trigonometric identity means an equation which involves the trigonometric ratios of an angle that is true for all the values of the angle involved in a right-angle triangle. Exercise 8.4 of Chapter 8 Introduction to Trigonometry Class 10 Maths is based on the concept of trigonometric identities. In this exercise, a trigonometric ratio is expressed in terms of other trigonometric ratios. This is done with the help of trigonometric identities. Students will learn in this exercise that the functions are interrelated to each other. The proofs are given in an elaborate manner in the chapter.