3. Trigonometric Functions Mathematics Exercise - 3.1 class 11 Maths in English - CBSE Study
NCERT Solutions for Class 11 Mathematics are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important 3. Trigonometric Functions with detailed explanations and step-by-step answers for better exam preparation. Each Exercise 3.1 is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 11 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Mathematics.
Class 11 English Medium Mathematics All Chapters:
3. Trigonometric Functions
1. 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
Topic Lists: