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

Last updated at Dec. 13, 2024 by Teachoo

 

Transcript

Ex 8.3, 3 Evaluate : ( sin2 63 + sin2 27 )/(cos2 17 + cos2 73 ) ( sin2 63 + sin2 27 )/(cos2 17 + cos2 73 ) = (sin2 (90 27) + sin2 27 )/(cos2 (90 73) + cos2 73 ) = (cos^2 (27 ) + sin2 27 )/(sin^2 (73 ) + cos^2 73 ) = 1/1 = 1 Hence, ( sin2 65 + sin2 27 )/(sin2 17 + sin2 73 ) = 1
  1. Chapter 8 Class 10 Introduction to Trignometry
  2. Serial order wise

    3. Ex 8.3

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Chapter 8 Class 10 Introduction to Trignometry
Serial order wise

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo