Ex 7.3, 7 - Chapter 7 Class 12 Integrals

Last updated at Dec. 16, 2024 by

Ex 7.3, 7 - Integrate sin 4x sin 8x - Chapter 7 Class 12 - Ex 7.3

Ex 7.3, 7 - Chapter 7 Class 12 Integrals - Part 2

Remove Ads

Transcript

Ex 7.3, 7 4 sin 8 sin 4 sin 8 We know that 2 = + + = 1 2 + + Replace A by 4 & B by 8 sin 4 sin 8 = 1 2 cos 4 +8 + cos 4 8 sin 4 sin 8 = 1 2 cos 12 + cos 4 sin 4 sin 8 = 1 2 cos 12 + cos 4 sin 4 sin 8 = 1 2 cos 4 cos 12 Integrating both sides sin 4 sin 8 = 1 2 cos 4 cos 12 = +

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

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