Ex 7.3, 11 - Class 12
Last updated at May 29, 2018 by Teachoo
Transcript
Ex 7.3, 11 cos42𝑥 cos42𝑥𝑑𝑥 = cos22𝑥2𝑑𝑥 = 1 + cos4𝑥22 = 14 1+ cos4𝑥2 = 14 12+ cos4𝑥2+2 cos4𝑥 1𝑑𝑥 = 14 1+ cos24𝑥+2 cos4𝑥𝑑𝑥 = 14 1+ cos 8𝑥 + 12+2 cos4𝑥𝑑𝑥 = 14 1𝑑𝑥+ 12 cos 8𝑥+1𝑑𝑥+2 cos4𝑥𝑑𝑥 = 14 1𝑑𝑥+ 12 cos8𝑥𝑑𝑥+ 12 1𝑑𝑥+2 cos4𝑥𝑑𝑥 = 14 𝑥+ 12 sin8𝑥8+ 12𝑥+2 sin4𝑥4+𝐶 = 14 𝑥+ 12 𝑥+ 116 sin8𝑥+ 12 sin4𝑥+𝐶 = 14 3𝑥2 + 116 sin8𝑥+ 12 sin4𝑥+𝐶 = 𝟑𝒙𝟖 + 𝟏𝟖 𝒔𝒊𝒏𝟒𝒙+ 𝟏𝟔𝟒 𝒔𝒊𝒏𝟖𝒙+𝑪
Ex 7.3
Ex 7.3, 1
Ex 7.3, 2
Ex 7.3, 3
Ex 7.3, 4
Ex 7.3, 5
Ex 7.3, 6 Important
Ex 7.3, 7
Ex 7.3, 8
Ex 7.3, 9
Ex 7.3, 10
Ex 7.3, 11 You are here
Ex 7.3, 12
Ex 7.3, 13 Important
Ex 7.3, 14
Ex 7.3, 15
Ex 7.3, 16
Ex 7.3, 17
Ex 7.3, 18 Important
Ex 7.3, 19
Ex 7.3, 20
Ex 7.3, 21
Ex 7.3, 22 Important
Ex 7.3, 23
Ex 7.3, 24 Important
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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.