Скачать или смотреть NCERT Exemplar Class 10 Maths | Chapter 8 Introduction to trigonometry | Exercise 8.1 | Question 7

Welcome to CBSE Worldz. In this video we will be discussing CBSE class 10 Maths NCERT Exemplar Chapter 8 Introduction to trigonometry Exercise 8.1
Q7: If cos 9a = sin a and 9a less than 90°, then the value of tan 5a is

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Chapterwise Playlist Link
👉Chapter 1 Real Numbers:    • Class 10 Maths Ch-1 Real Numbers  
👉Chapter 2 Polynomials:    • Class 10 Maths Ch-2 Polynomials  
👉Chapter 3 Pair of Linear Equations in two variables:
👉Chapter 4 Quadratic Equations:    • Class 10 Maths Ch-4 Quadratic Equations  
👉Chapter 5 Arithmetic Progression:    • Class 10 Maths Ch-5 Arithmetic Progressions  
👉Chapter 6 Triangles:    • Class 10 Maths Ch-6: Triangles  
👉Chapter 7 Coordinate Geometry:    • Class 10 Maths Ch-7 Coordinate Geometry  
👉Chapter 8 Introduction to Trigonometry:    • Class 10 Maths Ch-8 Introduction to Trigon...  
👉Chapter 9 Some applications of Trignometry
👉Chapter 10 Circles:    • Class 10 Math Ch-10 Circles  
👉Chapter 11 Constructions
👉Chapter 12 Area related to circles
👉Chapter 13 Surface area and volume
👉Chapter 14 Statistics
👉Chapter 15 Probability

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