NCERT Solutions for Class 10 Maths Chapter 8 Introduction to Trigonometry (Ex 8.4) Exercise 8.4
NCERT Solutions for Class 10 Maths ex 8.4 designed by the subject matter experts at Vedantu provide a detailed explanation of every sum covered in the exercise. Our experts have prepared the solutions to each question in Class 10 Chapter 8 Exercise 8.4 in an easy step-by-step manner. By going through these Maths NCERT Solutions Class 10 Ex 8.4, you should be able to solve and analyze sums from trigonometric identities. There are a total of 5 questions in Maths Class 10 Chapter 8 Exercise 8.4 with many subparts, need long-winded derivations which are explained clearly by breaking down each problem in multiple steps. All the NCERT Book Solutions are prepared by experienced and highly qualified teaching staff. You can also find NCERT Solutions for Class 10 Science on Vedantu.
NCERT Solutions for Class 10 Maths Chapter 8 Exercise 8.4
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FAQs on NCERT Solutions for Class 10 Maths Chapter 8 Exercise 8.4
1. How Would you Define Trigonometric Identities?
If an equation is true for all values of the variables involved in the equation, it is called an identity equation. Trigonometric identities are equations that involve trigonometric ratios of an angle which is true for all values of the angle or angles involved in the equation.
2. In a Right Angle Triangle ABC Where Angle B is 90 Degrees, how will you Prove that for any of the Acute Angles, say θ in that Triangle: Sin2θ + Cos2θ = 1.
If B is 90 degrees then the side AC is the hypotenuse of the right-angle triangle. So as per Pythagoras theorem:
AC2 = AB2 + BC2
If we divide each term in the above equation by AC2 we get:
AC2/AC2 = AB2/AC2 + BC2/AC2
I.e (AC/AC)2 = (AB/AC)2 + (BC/AC)2
So, 1 = Cos2θ + Sin2θ, where θ is the angle opposite to side BC.
3. How many difficult illustrations are there in 10th Maths Exercise 8.4?
In Class 10 Maths Exercise 8.4, you will be able to analyse and solve Trigonometry questions. There are in total five questions with different sub-parts, which need to be solved by different equations of Trigonometry. Different identities that need to be used in this exercise are:
Tan2θ = -1 + Sec2 θ
Tan θ = Sinθ/Cosθ
Cotθ = 1/tanθ
Secθ = 1/Cosθ
Cosecθ = 1/Sinθ
Sin2 θ + Cos2 θ = 1
4. Which is the best ever example in Exercise 8.4 of 10th Maths?
The best example from Class 10 Maths Exercise 8.4 is the question to prove 10 different trigonometric identities. As it is important to remember all the trigonometric identities, you can solve this question to revise all the important basic identities that will be used to solve the questions. You can make use of the basic identities of trigonometry and algebra to solve and prove the given identities.
5. Why is the chapter on Trigonometry considered to be the most important chapter?
The chapter on Trigonometry is of utmost importance in Class 10 Maths. You will get a large number of questions from this chapter in your exam. This chapter carries high weightage. If prepared well, this chapter can help you score several marks in the exam. If you practice enough questions with a deep understanding of the concept, it will definitely be a game-changer for your grades in Class 10.
6. Why do students choose NCERT Maths Class 10 Chapter 8 Exercise 8.4 Solutions?
Trigonometry can be a bit tricky because you have to illustrate, apply identities, and find the solutions by solving them. If you get stuck somewhere, you need a guide to understand what needs to be done next. Hence, students must solve all the questions themselves. NCERT Maths Class 10 Chapter 8 Exercise 8.4 Solutions are prepared by the subject experts with high accuracy. You can rely on them for the best tricks to solve different questions. You can find these solutions free of cost on the Vedantu website (vedantu.com) and also on our Vedantu Mobile app.
7. Where can I find the downloadable solutions for NCERT Class 10 Maths Exercise 8.4?
To find the downloadable solutions for NCERT Class 10 Maths Exercise 8.4, follow these steps:
Click NCERT Maths Class 10 Chapter 8 Exercise 8.4 Solutions.
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Click on the link, and you can easily download the solutions and keep them with yourself in offline mode to practice whenever you want.