# 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 in PDF format free download Hindi Medium and English Medium or View in Video Format updated for new academic session 2021-22.

NCERT Solutions and Offline Apps 2021-22 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 2021-2022. Download (Exercise 8.1) in PDF file format or use online given below.## NCERT Solutions for class 10 Maths Chapter 8 Exercise 8.1

Class: 10 | Maths (English and Hindi Medium) |

Chapter 8: | Exercise 8.1 |

### 10 Maths Chapter 8 Exercise 8.1 Solutions

NCERT Solutions for class 10 Maths Chapter 8 Exercise 8.1 Introduction to Trigonometry in ENGLISH & HINDI MEDIUM to free download in PDF. These Solutions are updated and modified according to the new CBSE Curriculum 2021-22 for CBSE board as well as UP Board students who are using NCERT Books 2021-22. Visit to Class X Mathematics Solution Chapter 8 main page for other exercises whether download or online study.

#### Class 10 Maths Chapter 8 Exercise 8.1 Solution in Hindi Medium Video

#### Class 10 Maths Chapter 8 Exercise 8.1 Solution in Videos

#### 10 Maths Chapter 8 Questions with Answers

- If sin A = cos A, find the value of A. [Answer: 45]
- If tan θ= cot (30° + θ), find the value of θ. [Answer: 30]
- If sin θ = cos (θ – 6°), find the value of θ. [Answer: 24]
- If cos A = 7/25, find the value of tan A + cot A. [Answer: 625/168]

##### Questions from Board Papers

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

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##### How many examples are there in exercise 8.1 of class 10th math?

There are 5 examples (Examples 1, 2, 3, 4 and 5) and 11 questions in exercise 8.1 of class 10th math. Example 1 and Questions 3, 4, 5 are of same type. Example 2 and Question 6 are of same type. Example 3 and Questions 1, 2 are of same type. Example 4 and Questions 7, 8, 9 are of same type. Example 5 and Question 10 are of same type. Question 11 is a true or false type question.

##### Which questions of Class 10 Maths Exercise 8.1 are easy to Solve?

Question 1, 2 and 11 of exercise 8.1 (class 10 math) are student’s favourite questions because these questions are very easy and students solve these questions without any difficulty. Also solutions of these questions are short in length with easy calculations. Question 11 is a true or false type question.

##### In which questions of exercise 8.1 of class 10th math, students face difficulty while solving?

While solving Question 6, 7, 8, 9 and 10 of exercise 8.1 of class 10th math students face difficulty because these questions are little tough as compare to other questions and need proper attention while solving.

##### Which examples of exercise 8.1 of class 10 math have chance to come in exams?

Example 1, 3, 4 and 5 of exercise 8.1 of class 10 math have chance to come in exams. All these examples are of different type. Examples 1 and 4 are quite easy to understand and solve than Examples 3 and 5.