Please Login To Continue

Class X(CBSE)| Maths | NCERT Textbook Solution | Exercise 8.2 (2 [i, ii, iii, iv], 3, 4) (in Hindi)

Lesson 6 of 6 • 1 upvotes • 10:27mins

Avatar

Brijesh Sharma

These videos are the solution of CBSE NCERT book of class X. In this lesson, 4 sub questions of Q2 and Q3, along with Q4 are solved of Exercise 8.2 Here are the questions, 2) Choose the correct option and justify your choice: i) (A) sin 60° (B) cos 60° (C) tan 60° (D) sin 30° ii) (A) tan 90° (B) 1 (C) sin 45° (D) 0 iii) sin 2A = 2 sin A is true when A = (A) 0° (B) 30° (C) 45° (D) 60° iv) (A) cos 60° (B) sin 60° (C) tan 60° (D) sin 30° 3) If tan (A + B) = Root 3 and tan (A – B) = 1 upon root 3; 0° < A + B ≤ 90°; A > B, find A and B. 4. State whether the following are true or false. Justify your answer. (i) sin (A + B) = sin A + sin B. (ii) The value of sin q increases as q increases. (iii) The value of cos q increases as q increases. (iv) sin q = cos q for all values of q. (v) cot A is not defined for A = 0°.

Continue on app
1

Class X(CBSE)| Maths | NCERT Textbook Solution | Exercise 8.1 (1,2 and 3) (in Hindi)

10:09mins

2

Class X(CBSE)| Maths | NCERT Textbook Solution | Exercise 8.1 (4,5 and 6) (in Hindi)

8:17mins

3

Class X(CBSE)| Maths | NCERT Textbook Solution | Exercise 8.1 (7,8 and 9) (in Hindi)

9:49mins

4

Class X(CBSE)| Maths | NCERT Textbook Solution | Exercise 8.1 (10 and 11) (in Hindi)

9:02mins

5

Class X(CBSE)| Maths | NCERT Textbook Solution | Exercise 8.2 (1-i, ii, iii, iv and v) (in Hindi)

10:19mins

6

Class X(CBSE)| Maths | NCERT Textbook Solution | Exercise 8.2 (2 [i, ii, iii, iv], 3, 4) (in Hindi)

10:27mins

Crack CBSE Class 10 with Unacademy

Get subscription and access unlimited live and recorded courses from India's best educators
Structured syllabus
Structured syllabus
Daily live classes
Daily live classes
Ask doubts
Ask doubts
Tests & practice
Tests & practice

More from Brijesh Sharma

thumbnail
HindiMathematics - 2

Basics of Trigonometry-Part 2

Brijesh Sharma

Similar Plus Courses

Unacademy is India’s largest online learning platform. Download our apps to start learning


Starting your preparation?

Call us and we will answer all your questions about learning on Unacademy

Call +91 8585858585
Company
About usShikshodayaCareersBlogsPrivacy PolicyTerms and Conditions
Products
Learner appLearner appEducator appEducator appParent appParent app