3. Trigonometric Functions Mathematics class 11 in English Medium ncert book solutions Exercise 3.1
3. Trigonometric Functions Exercise 3.1 – Complete NCERT Book Solutions for Class 11 Mathematics (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 3. Trigonometric Functions Exercise 3.1 to help you master concepts and score higher.
3. Trigonometric Functions Mathematics class 11 in English Medium ncert book solutions Exercise 3.1
NCERT Solutions for Class 11 Mathematics play an important role in helping students understand the concepts of the chapter 3. Trigonometric Functions clearly. This chapter includes the topic Exercise 3.1, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 11 studying Mathematics can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 3. Trigonometric Functions is explained in a structured way, making it easier for students to connect the theory with the topic Exercise 3.1. By studying these updated NCERT Solutions for Class 11 Mathematics, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
3. Trigonometric Functions
Exercise 3.1
Exercise 3.1
Q1. Find the radian measures corresponding to the following degree measures:
(i) 25° (ii) - 47°30' (iii) 240° (iv) 520°
Solution:
(i) 25°









Q3. A wheel makes 360 revolutions in one minute. Through how many radians does it turn in one second?

Q4. 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 π = 22/7).

Q5. In a circle of diameter 40 cm, the length of a chord is 20 cm. Find the length of minor arc of the chord.

Q6. If in two circles, arcs of the same length subtend angles 60° and 75° at the centre, find the ratio of their radii.

Q7. Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length
(i) 10 cm (ii) 15 cm (iii) 21 cm
See other sub-topics of this chapter:
1. Exercise 3.1 2. Exercise 3.2 3. Exercise 3.3 4. Exercise 3.4 5. Miscellaneous Exercise on Chapter - 3
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