and Then need to remove and obtain
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Originally Posted by dimuk and Then need to remove and obtain Under the condition , I got
Are there any assumptions we should know?
Last edited by bkarpuz; Sep 12th 2008 at 02:15 AM.
Reason: Coloured the upper bound of the sum.
I think I made a mistake. Your answer is correct. Let me know how did u get it.
Originally Posted by dimuk I think I made a mistake. Your answer is correct. Let me know how did u get it.
Thanks. It is so simple, first note that
then isolate and get
Substitute this into the other equation, and get ..... .....
By arranging the last expression, we easily get the desired result under the assumption .
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