by Tiwari Academy
NCERT Solutions for Class 10 Maths Chapter 8 Exercise 8.2 Introduction to Trigonometry in English and Hindi Medium updated for Session 2026-27. The derivation for Trigonometric Ratios with specific angles are given in Exercise 8.2 of 10th Maths.
Class 10 Maths Exercise 8.2 Solutions
Class 10 Maths Exercise 8.2 in Hindi
Class 10th Maths NCERT Book Download
Class 10 Maths Chapter 8 Solutions
Class 10 Maths NCERT Solutions
Class 10 all Subjects NCERT Solutions
Class 10 Maths Exercise 8.2 focuses on the manipulation and simplification of trigonometric identities. You must familiarize yourself with the basic identities such as sinยฒ๐ + cosยฒ๐ = 1 and how they apply to simplify expressions. Start by practicing these identities regularly and understanding their derivations. This will make it easier to apply them in various types of problems.
As the problems in Class 10 Maths Exercise 8.2 become more complex, you should focus on breaking down the expressions step by step. Practicing derivations and proving identities using the known formulas will help you develop logical thinking. Time yourself while solving these problems to improve both speed and accuracy, which is essential for doing well in exams.
| Class: 10 | Mathematics |
| Chapter 8: | Exercise 8.2 |
| Content: | NCERT Solutions and Study Material |
| Format of Content: | Images, PDF and Videos |
| Updated: | Academic Session 2026-27 |
| Medium: | English and Hindi Medium |
NCERT Solutions for class 10 Maths Chapter 8 Exercise 8.2
Class 10 Maths Ex. 8.2 solution in PDF format in Hindi Medium and English Medium for download or View in Video Format updated for new session 2026-27. Download Offline Apps 2026-27 of NCERT Solutions, which are prepared by expert teachers in easiest form suitable for all the students. These are based on latest CBSE Curriculum for CBSE as well as MP Board, UP Board students. Download (Exercise 8.2) in PDF or use online given below.
10 Maths Chapter 8 Exercise 8.2 Solutions
NCERT Solutions for class 10 Maths Chapter 8 Exercise 8.2 Introduction to Trigonometry in English & Hindi Medium to free download in PDF and option to study online also available. All of our digital study contents are free to use. These are updated time to time as per requirement of the students. Solutions are applicable for CBSE / UP Board / Uttarakhand Board / Boards using NCERT books 2026-27 and following new CBSE curriculum 2026-27.
Important Questions with Answers
- 1. Express sec ฮธ in terms of cot ฮธ. [Answer: โ(1 + cosยฒฮธ)/cot ฮธ]
- 2. Find the value of cosฮธcos (90 โ ฮธ) โ sin ฮธsin (90 โ ฮธ). [Answer: 0]
- 3. If sin (20 + ฮธ) = cos 30ยฐ then find the value of ฮธ. [Answer: 50]
- 4. If x = p sec ฮธ + q tan ฮธ & y = p tan ฮธ + q sec ฮธ then prove that xยฒ โ yยฒ = pยฒ โ qยฒ.
Questions from Board Papers
- If 7sinยฒ ฮธ + 3cosยฒ ฮธ = 4 then show that tan ฮธ = 1/โ3.
- If Sin (A โ B) = 1/2, cos (A + B) = 1/2, then find the value of A and B. [Answer: A = 45, B = 15]
- Prove that: tan 1ยฐ tan 11ยฐ tan 21ยฐ tan 69ยฐ tan 79ยฐ tan 89ยฐ = 1
- If sec 4 A = cosec (A โ 20ยฐ) then find the value of A. [Answer: 22]
Download NCERT Books and Offline Apps based on new CBSE NCERT Syllabus. Ask your doubts related to NIOS or CBSE Board and share your knowledge with your friends and other users through Discussion Forum.
Can students solve all questions of exercise 8.2 of 10th maths easily?
If students remember the values of sin 45ยฐ, cos 45ยฐ, tan 45ยฐ cosec 45ยฐ , sec 45ยฐ, cot 45ยฐ , sin 30ยฐ, cos 30ยฐ, tan 30ยฐ, cosec 30ยฐ, sec 30ยฐ, cot 30ยฐ, sin 60ยฐ, cos 60ยฐ, tan 60ยฐ, cosec 60ยฐ, sec 60ยฐ, cot 60ยฐ, sin 90ยฐ, cos 90ยฐ, tan 90ยฐ, cosec 90ยฐ, sec 90ยฐ, cot 90ยฐ, sin 0ยฐ, cos 0ยฐ, tan0ยฐ, cosec 0ยฐ, sec 0ยฐ, cot 0ยฐ on tips then they can easily solve all questions of exercise 8.2 of 10th maths.
If they donโt remember the values then exercise 8.2 becomes difficult for them.
Which examples of exercise 8.2 of class 10 math are expected for board Exams?
There are 3 examples (example 6, 7 and 8) in exercise 8.2 of class 10 math and all the examples have equal chance to come in exams. All these examples are of different type. Example 6 is quite easy to understand than Examples 7 and 8.
How much time needed to complete exercise 8.2 of Class 10th?
Students need maximum 1-2 days to complete exercise 8.2 (chapter 8) of class 10th mathematics if they are giving 2 hours per day. This time also depends on studentโs speed, efficiency and capability.
What are the CBSE Board Exams expected questions from exercise 8.2 of 10th Maths?
Most probably 1 mark questions like MCQ type, True or False type, Fill in the blanks type can come from exercise 8.2 (chapter 8) of class 10th mathematics. Also there are some questions (question 3) and examples (example 7 and 8) in exercise 8.2 which can come in 2 marks.
