NCERT Solutions for Class 11 Maths Chapter 3 Exercise 3.5

NCERT Solutions for Class 11 Maths Chapter 3 Exercise 3.5 Supplementary Exercise of Trigonometric Functions in Hindi Medium for the students using NCERT Books in Hindi and English Medium for those who are using Textbooks in English. Solutions are in updated form based on latest CBSE Syllabus 2018-19 for all the boards (CBSE, UP Board, MP Board, Bihar, Gujrat and others) who are using NCERT Books.

NCERT Solutions for Class 11 Maths Chapter 3 Exercise 3.5




Class 11 Maths Chapter 3 Exercise 3.5 Sols in English

NCERT Solutions for Class 11 Maths Chapter 3 Exercise 3.5 Supplementary Exercise of Trigonometric Functions in English Medium is given below. It is an important one as per examination point of view. After doing all the main exercises, students must do this as it is based on sine and cosine rule which is important for further classes. Click here to see the Hindi Medium solutions or go to NCERT Solutions for Class 11 Maths Chapter 3 to see the solutions of other exercises.
Class 11 Maths Chapter 3 Exercise 3.5 Supplementary Exercise in English




Class 11 Maths Chapter 3 Exercise 3.5 Supplementary Exercise all questions
Class 11 Maths Chapter 3 Exercise 3.5 Supplementary Exercise question 1, 2, 3, 4, 5
Class 11 Maths Chapter 3 Exercise 3.5 Supplementary question 6, 7, 8, 9, 10, 11, 12, 13



Class 11 Maths Chapter 3 Exercise 3.5 Supplementary Exercise for 2018-19.

Class 11 Maths Chapter 3 Exercise 3.5 Sols in Hindi

NCERT Solutions for Class 11 Maths Chapter 3 Exercise 3.5 Supplementary Exercise  in Hindi Medium is given below. All the questions of this exercise are based on sine and cosine formulae. Click here to see English Medium sols go to NCERT Solutions for Class 11 Maths Chapter 3 to see the solutions of other exercises.
11 Maths Chapter 3 Exercise 3.5 in Hindi Medium



11 Maths Chapter 3 Exercise 3.5 in Hindi for 2018-19.
11 Maths Chapter 3 Exercise 3.5 all questions in hindi




11 Maths Chapter 3 Exercise 3.5 questions 1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 9, 10

11 Maths Chapter 3 Exercise 3.5 question 11, 12, 13 in hindi



About 11 Maths Exercise 3.5 Supplementary

In Chapter 3 Exercise 3.5, mainly the sine formula and cosine formula are introduced. The questions are given on the basis of these formula only. Some of the problems required both the formulae simultaneously.
Sine Formula: In any triangle, the sides of triangle are proportional to the sine of angles opposite to the sides.
i.e. (sin A)/a = (sin B)/b = (sin C)/c = k, where k is a constant.


  • Cosine formula: The cosine of an angle A of any triangle ABC, whose sides are a (opposite to BC), b (opposite to AC) and c (opposite to AB) is given by cos A = [b² + c² – a²]/2bc.
  • साइन सूत्र: किसी भी त्रिभुज में, भुजाएँ सम्मुख कोणों के साइनों के समानुपाती होती हैं।
    (sin A)/a = (sin B)/b = (sin C)/c = k
    कोसाइन सूत्र: किसी त्रिभुज ABC, जिसके कोण A, B और C हैं तथा a, b और c क्रमशः कोणों की सम्मुख भुजाएँ हैं।  cos A = [b² + c² – a²]/2bc


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