We have to prove the following statement:
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Observe that Now pick and
Hence, conditions are fulfilled if you take
the question and where i got stuck in this link:
http://img187.imageshack.us/img187/8868/44429492ix7.gif
did i prove it correctly
i solved it differently from the article
is that ok?
http://img224.imageshack.us/img224/9929/93418507so5.gif