# NCERT Solutions for Class 10 Maths Chapter 8 Exercise 8.1

NCERT Solutions for class 10 Maths Chapter 8 Exercise 8.1 Introduction to Trigonometry PDF download or in Hindi Medium and English Medium or View in Video Format free. NCERT Solutions and Offline Apps are re-modified removing errors and making more simplified for the students. Solutions are appropriate for CBSE board students, MP Board, UP Board students and all the other state boards, who are following NCERT Books. Download (Exercise 8.1) here in PDF form or use online given below.

 Class 10: Maths – गणित Chapter 8: Introduction to Trigonometry (Exercise 8.1)

## NCERT Solutions for class 10 Maths Chapter 8 Exercise 8.1

### Class 10 Maths Chapter 8 Exercise 8.1 Solutions in English

NCERT Solutions for class 10 Maths Chapter 8 Exercise 8.1 Introduction to Trigonometry in ENGLISH MEDIUM to free download. Solutions are updated and modified according to the new CBSE Curriculum 2018-19 for CBSE board as well as UP Board students who are using NCERT Books. Click here to move Class 10 Maths Chapter 8 for other exercises whether download or online study. CLICK HERE for Hindi Medium or  Video Format Solutions.

### 10 Maths Chapter 8 Exercise 8.1 Sols in Video

NCERT Solutions for class 10 Maths Exercise 8.1  in video format with complete description.

#### Class 10 Maths Chapter 8 Exercise 8.1 Solutions in Hindi

NCERT Solutions for class 10 Maths Chapter 8 Exercise 8.1 Introduction to Trigonometry in HINDI MEDIUM to download in PDF form free. Whether you download or use as it is online, both the option are given for all uses. Click here to move Class 10 Maths Chapter 8 for other exercises whether download or online study. Go back to English Medium  or Video Format Solutions.

Visit to English Medium or Hindi Medium or in Video Format Solutions.

#### Class 10 Maths Chapter 8 Extra Questions with Answers

1. If sin A = cos A, find the value of A. [Answer: 45]
2. If tan θ= cot (30° + θ), find the value of θ. [Answer: 30]
3. If sin θ = cos (θ – 6°), find the value of θ. [Answer: 24]
4. If cos A = 7/25, find the value of tan A + cot A. [Answer: 625/168]
5. If tan θ = 4/3, then find the value of (sin θ + cos θ)/( sin θ – cos θ).[Answer: 7]
6. If 3x = cosec θ and 3/x = cot θ then find 3(x² – 1/x²). [Answer: 1/3]
7. If x = a sin θ and y = a cos θ then find the value of x² + y². [Answer: a]
8. Find the value of cosec 70° – sec 20°. [Answer: 0]
9. Find the value of 9 sec² A – 9 tan² A. [Answer: 9]