Brijesh Sharma

In this course, the educator is discussing the detailed solutions of Exercise 8.1, Exercise 8.2, Exercise 8.3 and Exercise 8.4 from NCERT BOOK.

Prepare yourself for the Board Examinations by understanding the basic concepts and solving previous year questions from all the subjects.

CBSE Class 10

Hindi

(Hindi) Introduction to Trigonometry | Class X | Chapter 8 | (CBSE) NCERT Full Solution

Introduction to Trigonometry

Trigonometry

Mathematics

Class 6-12

Become a topper in your school and ace your board exams by learning from best educators in the country

CBSE

CBSE (Central Board of Secondary Education)

Trigonometery

These videos are the solution of CBSE NCERT book of class X.

In this lesson, 3 sums are solved of Exercise 8.1

1.In △ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine:
(i) sinA, cosA
(ii) sinC, cosC

2.In the given Fig., 
find tan P – cot R.

3.If sin A = 3/4 , calculate cos A and tan A.

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

These videos are the solution of CBSE NCERT book of class X.

In this lesson, 3 sums are solved of Exercise 8.1

4. Given: 15 cot A = 8, find sin A and sec A.

5. Given: sec θ = 13/12, calculate all other trigonometric ratios.

6. If ∠A and ∠B are acute angles such that cos A = cos B, then show that ∠A = ∠B.

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

These videos are the solution of CBSE NCERT book of class X.

In this lesson, 3 sums are solved of Exercise 8.1

7. If cot θ = 7/8, evaluate: (i) (1 + sin θ)(1-sin θ)/(1 + cos θ)(1 - cos θ)
(ii) cot^2θ

8. If 3 cot A = 4, check whether (1-tan^2A)/(1+tan^2A) = cos^2A-sin^2A or not.

9. In triangle ABC, right-angled at B, if tan A = 1/ find the value of:
(i) sin A cos C + cos A sin C
(ii) cos A cos C – sin A sin C

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

These videos are the solution of CBSE NCERT book of class X.

In this lesson, 2 Questions are solved of Exercise 8.1

10. In △PQR, right-angled at Q, PR + QR = 25 cm and PQ = 5 cm. Determine the values of sinP, cosP and tanP.

11. State whether the following are true or false. Justify your answer.
(i) The value of tanA is always less than 1.
(ii) secA = 12/5 for some value of angle A.
(iii) cosA is the abbreviation used for the cosecant of angle A.
(iv) cotA is the product of cot and A.
(v) sin θ = 4/3 for some angle θ.

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

These videos are the solution of CBSE NCERT book of class X.

In this lesson, 5 sub questions of Q1 are solved of Exercise 8.2 - 1- (i, ii, iii, iv, v)

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

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°.

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

B.E from Jadavpur University.
Teaching is learning twice :) 

Aman Kumar

This course is about the fundamentals of trigonometry and practical applications of it.

(Hindi) Class 10 CBSE - Trigonometry

Research scholar at J. P. University 
11 years teaching experience

Maswood Alam Khan

In this course, Maswood Alam Khan discusses the basic concepts of trigonometry. The course will be beneficial for Class 10 NCERT students.

(Hindi) Trigonometry: Class 10 NCERT

Student at E & E Engg. NITK Surathkal, Mangalore, Music and Movie Lover , Badminton Player, Cricket Lover too and a passion for teaching

Niranjan Selvaraj

This course deals with the basics of Trigonometry and later move on to the depth of it. This course will help you fully understand Trigonometry from the beginning. It includes the Trigonometric functions, Identities, Equations, applications and also Inverse Trigonometry. If you want a summary of the whole course, you can have a look at the Summary lesson, which can help you revise quickly.

Learn Trigonometry the Fun Way

Diploma in Electrical Engineering from Government Polytechnic, Vaishali

Sambhav Kumar

This course provide basic concepts of Trigonometry which help you to develop better understanding of Trigonometry in intresting way and give you ability to solve any conceptual problem regarding trigonometry.

(Hindi) Class 10: Trigonometry Fundamentals

my name is renu yadav.
i have done M.Sc (mathematics), B.Sc (pcm), B.Ed .i have qualified ctet 2 tym, uptet 2 tym, pre uptet1tym pre ctet 1 

Renu Yadav

In this course, the educator is discussing all trigonometric concept for class 10th

Lessons

6 lessons • 58m