Example 9 (iii) - Chapter 7 Class 12 Integrals (Term 2)
Last updated at July 9, 2018 by Teachoo
Integration by specific formulaes - Formula 4
Integration by specific formulaes - Formula 4
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