Ex 8.2, 3 - If tan (A + B) = root 3 and tan (A - B) = - Trignometric ratios of Specific Angles - Evaluating

  1. Chapter 8 Class 10 Introduction to Trignometry
  2. Serial order wise
Ask Download

Transcript

Ex 8.2, 3 If tan (A + B) = √3 and tan (A – B) = 1/√3 ; 0° < A + B ≤ 90°; A > B, find A and B. Given that Our equations are A + B = 60° …(1) A – B = 30° …(2) Adding (1) and (2) A + B + A – B = 60° + 30° 2A = 90° A = (90°)/2 A = 45° Putting A = "45°" in (1) A + B = 60° 45° + B = 60° B = 60° − 45° B = 15° Hence A = 45° , B = 15°

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 provides courses for Mathematics from Class 9 to 12. You can ask questions here.
Jail