Help with variation in Hartre Fock method

[baranas]

I can't get the variation of formula
[PLAIN]http://img813.imageshack.us/img813/3754/38919739.png
in the form of
[PLAIN]http://img839.imageshack.us/img839/536/96608635.png.
Can anyone help me. Sorry, I am not good at math :)

 

[strangerep]

I can't get the variation of formula
[...]
Can anyone help me. Sorry, I am not good at math :)

You should probably at least try to follow the spirit of the PF rules
for homework help: show what you've done so far (in latex) and
indicate where you get stuck.