What's the integral of u''(x)/u'(x)?

1. Sep 20, 2007

kasse

What's the integral of u''(x)/u'(x)?

2. Sep 20, 2007

*melinda*

you need to do u substitution

3. Sep 20, 2007

dynamicsolo

If you were to call v = u'(x), what would u''(x) be? You can make a new integral in terms of v. If the result tells you what v is, you can now substitute back to find an expression in terms of u.

4. Sep 20, 2007

kasse

Of course, thank you!

5. Sep 21, 2007

kasse

Btw, how is u'' to be pronounced?

u prime prime? u double prime?

6. Sep 21, 2007

dynamicsolo

"u double prime" is typical.