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    http://www.thestudentroom.co.uk/show....php?t=3318103

    Could anyone possibly provide an answer?


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    Well Mutleybm1996 your scan in one browser would not read an and I wonder if thats why nobody answered

    This kind of question generally relies on you re arranging the summation in terms of summations that you can complete.

    For example a sum between i=500 and 1000 might be changed to the difference between the sum from 1 to 1000 and the one from 1 to 499.
 
 
 
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Updated: May 11, 2015

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