Last updated at March 8, 2017 by Teachoo

Transcript

E𝑥3.2, 7 Find the value of the trigonometric function cosec (–1410°) cosec (–1410°) = – cosec (1410°) = – cosec (1410 × 𝜋/180) = – cosec (47𝜋/6) = – cosec (75/6 𝜋) = – cosec (8π – 1/6 π ) = – cosec (– 1/6 π ) = – cosec (– 1/6 × 180° ) = – cosec (–30°) = – (– cosec 30°) = cosec 30° = 1/sin〖30°〗 = 1/(( 1/2 ) ) = 2/1 = 2

Ex 3.1, 1
Important

Ex 3.1, 2 Important

Ex 3.2, 7 Important You are here

Ex 3.2, 8 Important

Ex 3.2, 9 Important

Ex 3.3, 4 Important

Ex 3.3, 5 Important

Ex 3.3, 8 Important

Ex 3.3, 11 Important

Ex 3.3, 18 Important

Ex 3.3, 23 Important

Ex 3.3, 21 Important

Example 24 Important

Ex 3.4, 4 Important

Ex 3.4, 8 Important

Ex 3.4, 9 Important

Example 27 Important

Example 28 Important

Misc 4 Important

Misc 7 Important

Important Question for exams Class 11

- Chapter 1 Class 11 Sets
- Chapter 2 Class 11 Relations and Functions
- Chapter 3 Class 11 Trigonometric Functions
- Chapter 4 Class 11 Mathematical Induction
- Chapter 5 Class 11 Complex Numbers
- Chapter 6 Class 11 Linear Inequalities
- Chapter 7 Class 11 Permutations and Combinations
- Chapter 8 Class 11 Binomial Theorem
- Chapter 9 Class 11 Sequences and Series
- Chapter 10 Class 11 Straight Lines
- Chapter 11 Class 11 Conic Sections
- Chapter 12 Class 11 Introduction to Three Dimensional Geometry
- Chapter 13 Class 11 Limits and Derivatives
- Chapter 14 Class 11 Mathematical Reasoning
- Chapter 15 Class 11 Statistics
- Chapter 16 Class 11 Probability

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He provides courses for Mathematics from Class 9 to 12. You can ask questions here.