Feb 11, 2007 19:41
So my teacher thought it would fun to go through a whole chapter on integrals while i was down with bronchitis. uhh.. could someone help me with these problems?
a) Integral of 12x^2/(2x^3+5)^(5/2) dx using substitution
b) Find 4xe^2x dx using integration by parts
I tried doing this one going along with the example in the book, and I got...
(4xe^2x)/(2) - (e^2x)/(4) + C
c)Find the value of 1/x^3dx from 3 to infinity...
Followed the example and got 1/36?
So yeah, any help would be much appreciated! I am trying to find resources on theinternet to use, but blah... not helping. Stupi