NCERT Solutions · Class 11

NCERT Solutions for Class 11 Maths Chapter 3 Trigonometric Functions — Exercise 3.1

Step-by-step NCERT Solutions for Class 11 Maths Chapter 3 (Trigonometric Functions), Exercise 3.1. 7 questions with answers — read online free on NCERT Help.

Maths Chapter 3 Exercise 3.1 7 questions
ClassClass 11
SubjectMaths
ChapterChapter 3 — Trigonometric Functions
ExerciseExercise 3.1
Questions solved7

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Questions & step-by-step answers

EXERCISE 3.1

NCERT class 11 maths chapter 3 Trigonometric Functions

Question 1:Find the radian measures corresponding to the following degree measures: (i) 25° (ii) – 47°30¢ (iii) 240° (iv) 520° 2 . Find the degree measures corresponding to the following radian measures (Use 22  7 = ). (i) 11 16 (ii) – 4 (iii) 5 3 (iv) 7 6

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Question 3:A wheel makes 360 revolutions in one minute. Through how many radians does it turn in one second?

class 11 maths solutions Trigonometric Functions

Question 4:Find the degree measure of the angle subtended at the centre of a circle of radius 100 cm by an arc of length 22 cm (Use 22  7 = ).

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Question 5:In a circle of diameter 40 cm, the length of a chord is 20 cm. Find the length of minor arc of the chord.

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Question 6:If in two circles, arcs of the same length subtend angles 60° and 75° at the centre, find the ratio of their radii.

Question 7:Find the angle in radian through which a pendulum swings if its length is 75 cm and th e tip describes an arc of length (i) 10 cm (ii) 15 cm (iii) 21 cm

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NCERT Solutions for Class 11 Chapter 3 Ex3.1 Trigonometric Functions

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This page includes 7 NCERT textbook questions with detailed answers.

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