Learn All Concepts of Chapter 2 Class 11 Relations and Function - FREE. Check - Trigonometry Class 11 - All Concepts

Slide1.JPG

Slide2.JPG

Slide3.JPG

Slide4.JPG

Slide5.JPG

 

  1. Chapter 3 Class 11 Trigonometric Functions
  2. Serial order wise

Transcript

Ex 3.1, 1 Find the radian measures corresponding to the following degree measures: 25° Radian measure = "π" /180 × Degree measure = "π" /180 × 25° = "π" × 5/36 = 𝟓𝝅/𝟑𝟔 radians Ex 3.1, 1 Find the radian measures corresponding to the following degree measures: (ii) –47° 30’ –47° 30′ = –(47° + 30′) = –("47" °"+ " (30°)/60) = –("47" °"+ " ( 1°)/2) = –(( 94 + 1°)/2) = –(( 95°)/2) 1 degree = 60 min i.e. 1° = 60′ Radian measure = "π" /180 × degree measure = "π" /180 × (("–" 95)/2) = "π" × (−19)/72 = (−𝟏𝟗𝝅)/𝟕𝟐 radians Ex 3.1, 1 Find the radian measures corresponding to the following degree measures: (iii) 240° Radian measure = "π" /180 × degree measure = "π" /180 × 240° = "π" × 4/3 radians = 𝟒/𝟑 "π" radians Ex 3.1, 1 Find the radian measures corresponding to the following degree measures: (iv) 520° Radian measure = "π" /180 × degree measure = "π" /180 × 520° = "π" × 26/9 = 𝟐𝟔/𝟗 "π" radians

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.