I have this practice question but I have no idea how to approach.
Any help guiding me on the theory of how to do this question is appreciated.
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For part (a):
You're given: (expression (1)) and you need to prove that: (expression (2))
Substitute (1) in (2):
To see clearly what happens we write down a few terms of the summation:
this is equal to:
Hi guys thanks for the help
Last edited by abc1993; March 9th 2012 at 12:48 AM.
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