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Integration by partsAQA A-Level Maths: Mind map

What this mind map covers

  • Formula
  • Choose u
  • Standard results
  • Repeated
  • Definite
  • Exam tips

Exam questions on Integration by parts

  1. Let I=∫x e2x dxI=\int x\,e^{2x}\,dx.
    Hence find the exact value of ∫01x e2x dx\int_0^1x\,e^{2x}\,dx.2 marks
  2. A student tries to find ∫xcos⁡x dx\int x\cos x\,dx by integration by parts, choosing u=cos⁡xu=\cos x and dvdx=x\frac{dv}{dx}=x.
    Hence find the exact value of ∫0π/2xcos⁡x dx\int_0^{\pi/2}x\cos x\,dx.2 marks
  3. The function y=ln⁡xy=\ln x is defined for x>0x>0.
    Use integration by parts with u=ln⁡xu=\ln x to show that ∫ln⁡x dx=xln⁡x−x+c\int\ln x\,dx=x\ln x-x+c.3 marks
See the full worksheet

Written by the Exaim team, led by Shaun Daswani (Head of Upper Secondary, Improve ME Institute; MSc Financial Mathematics, Imperial College London; BSc, UCL) and Jason Daswani (operational lead, Improve ME Institute; LSE).