How to integrate lnX?

Firstly I would ask the student what different ways of integration do we know so far? After eliminating each possibility, such as the answer is not XlnX, as this differentiates via product rule, the student will attempt intégration by parts. Either with assistance or by themselves the student will realise that u= lnX and du/dx= 1, then the rest is followed by a normal integrating by parts question.This question not only introduces integrating by parts, but also introduces the possibility of having one of the parts = to 1.

Answered by Siam R. Maths tutor

3172 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Find the inverse of f(x) = (3x - 6)/2


Integrate x*ln(x)


Why is it that the sum of all natural numbers up to n is 1/2(n)(n+1)?


Integrate sin^2(x) with respect to x


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences