# Example 9 (iii) - Chapter 7 Class 12 Integrals

Last updated at July 9, 2018 by Teachoo

Last updated at July 9, 2018 by Teachoo

Transcript

Example 9 Find the following integrals: (iii) 𝑑𝑥 5 𝑥2 − 2𝑥 𝑑𝑥 5 𝑥2 − 2𝑥 = 𝑑𝑥 5 𝑥2 − 25𝑥 = 𝑑𝑥 5 𝑥2 − 2 𝑥 15 = 𝑑𝑥 5 𝑥2 − 2 𝑥 15 + 152− 152 = 𝑑𝑥 5 𝑥 − 152− 152 = 𝑑𝑥 5 𝑥 − 152− 152 = 𝑑𝑥 5 𝑥 − 152− 152 = 1 5 𝑙𝑜𝑔 𝑥− 15+ 𝑥− 152− 152+𝐶1 = 1 5𝑙𝑜𝑔 𝑥− 15+ 𝑥− 152− 152+ 𝐶1 5 = 1 5𝑙𝑜𝑔 𝑥− 15+ 𝑥2+ 152−2 𝑥 15− 152+𝐶 = 1 5𝑙𝑜𝑔 𝑥− 15+ 𝑥2− 2𝑥5+𝐶

Integration by specific formulaes - Formula 4

Chapter 7 Class 12 Integrals

Concept wise

- Using Formulaes
- Using Trignometric Formulaes
- Integration by substitution - x^n
- Integration by substitution - lnx
- Integration by substitution - e^x
- Integration by substitution - Trignometric - Normal
- Integration by substitution - Trignometric - Inverse
- Integration using trigo identities - sin^2,cos^2 etc formulae
- Integration using trigo identities - a-b formulae
- Integration using trigo identities - 2x formulae
- Integration using trigo identities - 3x formulae
- Integration using trigo identities - CD and CD inv formulae
- Integration using trigo identities - Inv Trigo formulae
- Integration by parts
- Integration by parts - e^x integration
- Integration by specific formulaes - Formula 1
- Integration by specific formulaes - Formula 2
- Integration by specific formulaes - Formula 3
- Integration by specific formulaes - Formula 4
- Integration by specific formulaes - Formula 5
- Integration by specific formulaes - Formula 6
- Integration by specific formulaes - Formula 7
- Integration by specific formulaes - Formula 8
- Integration by specific formulaes - Method 9
- Integration by specific formulaes - Method 10
- Integration by partial fraction - Type 1
- Integration by partial fraction - Type 2
- Integration by partial fraction - Type 3
- Integration by partial fraction - Type 4
- Integration by partial fraction - Type 5
- Definite Integral as a limit of a sum
- Definite Integration - By Formulae
- Definite Integration - By Partial Fraction
- Definite Integration - By e formula
- Definite Integration - By Substitution
- Definite Integration by properties - P2
- Definite Integration by properties - P3
- Definite Integration by properties - P4
- Definite Integration by properties - P6
- Definite Integration by properties - P7

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.