I insanerp New member Joined Jan 26, 2008 Messages 15 Feb 13, 2008 #1 Evaluate the integral. The question is attached in one link and my answer is in another. Why is my answer worry and did I do wrong? Thanks. Attachments 77b7e9f7b19ef63e25f00c0d213a8f.gif 713 bytes · Views: 106 23eb7752cba0ee6485be9e6b187fc7.gif 1.1 KB · Views: 106
Evaluate the integral. The question is attached in one link and my answer is in another. Why is my answer worry and did I do wrong? Thanks.
G galactus Super Moderator Staff member Joined Sep 28, 2005 Messages 7,203 Feb 14, 2008 #2 I don't know what you have done wrong, but try parts. \(\displaystyle 3\int{ln(7x)^{2}}dx\) Let \(\displaystyle u=ln(7x)^{2}, \;\ dv=dx, \;\ du=\frac{2ln(7x)}{x}dx, \;\ v=x\)
I don't know what you have done wrong, but try parts. \(\displaystyle 3\int{ln(7x)^{2}}dx\) Let \(\displaystyle u=ln(7x)^{2}, \;\ dv=dx, \;\ du=\frac{2ln(7x)}{x}dx, \;\ v=x\)
