1. Chapter 8 Class 10 Introduction to Trignometry (Term 1)
  2. Serial order wise
  3. Ex 8.3

Ex 8.3, 4 - Chapter 8 Class 10 Introduction to Trignometry (Term 1)

Last updated at July 12, 2018 by

Ex 8.3, 4 - If tan A = cot B, prove that A + B = 90 - Trignometric ratios of complementry angles

  1. Chapter 8 Class 10 Introduction to Trignometry (Term 1)
  2. Serial order wise

    3. Ex 8.3

    Ex 8.4 →

Transcript

Ex 8.3, 4 If tan A = cot B, prove that A + B = 90 . Given tan A = cot B To solve this we should know relation between tan and cot Now, We know that cot θ = tan (90 - θ) Putting value of cot B tan A = tan (90 - B) Comparing angles A = 90 - B A + B = 90 Hence proved.

Chapter 8 Class 10 Introduction to Trignometry (Term 1)
Serial order wise

About the Author

Davneet Singh's photo - Teacher, Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.