Why cant I remember how to integraTE

  • Thread starter Thread starter Saladsamurai
  • Start date Start date
  • Tags Tags
    Integrate
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
4 replies · 2K views
Saladsamurai
Messages
3,009
Reaction score
7
[SOLVED] why can't I remember how to integraTE

[tex]x^2lnxdx[/tex] ? I can't find a formula that matches up?
 
Physics news on Phys.org
You want help to Integrate it or just saying why can't you remember the table formula and you want someone to give it to you?

[tex]\int x^2\ln xdx[/tex]

Integrate by Parts: [tex]I=uv-\int vdu[/tex]

[tex]u=\ln x[/tex]
[tex]du=\frac{dx}{x}[/tex]

[tex]dV=x^2dx[/tex]
[tex]V=\frac 1 3 x^3[/tex]
 
Last edited:
Are you answering my question, or just asking me to restate the original.
 
cigarets spelled like that must be funny! Anyway, by parts it is. Thanks B.