Subscribe to our Youtube Channel - https://you.tube/teachoo
Ex 7.2, 15 - Chapter 7 Class 12 Integrals
Last updated at May 29, 2018 by Teachoo
Transcript
Ex 7.2, 15 Integrate the function: 𝑥9 − 4𝑥2 Step 1: Let 9 – 4𝑥2 = 𝑡 Differentiating both sides 𝑤.𝑟.𝑡.𝑥 0−4.2 𝑥2−1= 𝑑𝑡𝑑𝑥 −8𝑥.𝑑𝑥=𝑑𝑡 𝑑𝑥 = 𝑑𝑡−8𝑥 Step 2: Integrating the function 𝑥9 − 4𝑥2 . 𝑑𝑥 Putting 9 − 4𝑥2=𝑡 & 𝑑𝑥= 𝑑𝑡−8𝑥 = 𝑥𝑡 . 𝑑𝑡−8𝑥 = − 18 1𝑡 . 𝑑𝑡 = − 18 log 𝑡+𝐶 = − 𝟏𝟖 𝐥𝐨𝐠 𝟗 − 𝟒𝒙𝟐+𝑪
Ex 7.2
Ex 7.2, 1
Ex 7.2, 2
Ex 7.2, 3 Important
Ex 7.2, 4
Ex 7.2, 5
Ex 7.2, 6
Ex 7.2, 7 Important
Ex 7.2, 8
Ex 7.2, 9
Ex 7.2, 10
Ex 7.2, 11 Important
Ex 7.2, 12
Ex 7.2, 13
Ex 7.2, 14 Important
Ex 7.2, 15 You are here
Ex 7.2, 16
Ex 7.2, 17
Ex 7.2, 18
Ex 7.2, 19 Important
Ex 7.2, 20 Important
Ex 7.2, 21
Ex 7.2, 22
Ex 7.2, 23
Ex 7.2, 24
Ex 7.2, 25
Ex 7.2, 26 Important
Ex 7.2, 27
Ex 7.2, 28
Ex 7.2, 29
Ex 7.2, 30
Ex 7.2, 31
Ex 7.2, 32 Important
Ex 7.2, 33 Important
Ex 7.2, 34 Important
Ex 7.2, 35
Ex 7.2, 36 Important
Ex 7.2, 37 Important
Ex 7.2, 38 Important
Ex 7.2, 39 Important
About the Author
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.