• August 28th 2008, 03:03 PM
Jensen
I was asked execute the proof shown in figure 1. I managed to prove what is in figure 2, but cannot make any headway on figure 3. Please Help.
• August 29th 2008, 09:05 AM
Moo
Hello,
Quote:

Originally Posted by Jensen
I was asked execute the proof shown in figure 1. I managed to prove what is in figure 2, but cannot make any headway on figure 3. Please Help.

Remember that $\frac{d(x^2)}{dx}=2x$
And hence $x \cdot dx=\frac{d(x^2)}{2}$
• August 29th 2008, 05:58 PM
Jensen
Thanks for the help. I also found a vector identity that worked nicely also.