Thread: Integration!!!

I havnt done calculus in a while and need help doing this integral... Im pretty sure it has to do with integation by parts but am not sure. <br><br>Integral of&nbsp; x^2e^(-kx)&nbsp; with limits 0 to positive infinity. Thanks!!! <br>

Originally Posted by clipperdude21

I havnt done calculus in a while and need help doing this integral... Im pretty sure it has to do with integation by parts but am not sure. <br><br>Integral of&nbsp; x^2e^(-kx)&nbsp; with limits 0 to positive infinity. Thanks!!! <br>

did u mean this?



use integration by parts twice..

would u=x^2 and dv= the rest for the 1st? Im lost with calculus lol

Originally Posted by clipperdude21

would u=x^2 and dv= the rest for the 1st? Im lost with calculus lol

yes..