Answers>Maths>IB>Article

How do you integrate xln(x) between the limits of 0 and 2?

In order to answer this question you need to use integration by parts.Using the standard integration by parts formula: ∫u dv/dx dx = uv-∫v du/dx dx.Let:u=ln(x) v=(1/2)x2du/dx=1/x dv/dx=xTherefore we get:I=[1/2xln(x)-1/2∫xdx]20We now know how to integrate x. It becomes 1/2x2. Therefore the overall integral becomes:I=[1/2xln(x)]20-[1/4x2]20I=2ln(2)-1I=ln(4/e)I ≈ 0.386

Answered by Lena K. Maths tutor

1199 Views

See similar Maths IB tutors

Related Maths IB answers

All answers ▸

Simplify the following quadratic equation: 3x^2 + 20x - 500 = 0.


Derive the following: f(x)=(96/x^2)+kx


How to I solve system of simultaneous equations (3x3)?


The function f has a local extreme at point (1,4). If f''(x)=3x^2+2x, then find f(0)?


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