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.

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- Aug 28th 2008, 02:03 PMJensenTough Gradient Proof. Help!
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.

- Aug 29th 2008, 08:05 AMMoo
- Aug 29th 2008, 04:58 PMJensen
Thanks for the help. I also found a vector identity that worked nicely also.