integrate with respect to x the function f(x)= xln(x)

Use integration by parts

let u=ln(x)

let dv/dx=x

therefore du/dx=1/x and v=(1/2)x^2

therefore the integral of xln(x) is equal to the following:

(1/2)x^2ln(x) - (integral with respect to x of:((1/2)x^2)/x)

= (1/2)x^2ln(x) - (integral with respect to x of:((1/2)x))

=(1/4)x^2(2ln(x)-1) + c

(I will explain further how I reached this answer during the session with provision of the whiteboard to evaluate my integrals) 

PJ
Answered by Priya J. Maths tutor

3382 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Find f'(x) and f''(x) when f(x) = 3x^2 +7x - 3


Let f(x) and g(x) be two odd functions defined for all real values of x. Given that s(x)=f(x)+g(x), prove that s(x) is also an odd function.


A uniform ladder of mass 5 kg sits upon a smooth wall and atop a rough floor. The floor and wall are perpendicular. Draw a free body diagram for the ladder (you do not need to calculate any forces).


Use the substitution u = 2^x to find the exact value of ⌠(2^x)/(2^x +1)^2 dx between 1 and 0.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning