I'm assuming this is the correct way to write;

where the n goes on for infinity.

So how can you prove;

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- Jan 6th 2010, 08:19 AMRhysGMHow can you prove this?

I'm assuming this is the correct way to write;

where the n goes on for infinity.

So how can you prove;

- Jan 6th 2010, 08:30 AMKrizalid
__Hint__: and use telescoping series. - Jan 6th 2010, 10:18 AMRhysGM
- Jan 6th 2010, 10:49 AMPlato

Now - Jan 6th 2010, 10:57 AMRhysGM
- Jan 7th 2010, 01:05 AMRhysGM
- Jan 7th 2010, 02:18 AMmr fantastic
sum infinite geometric series: sum infinite geometric series - Google Search=

- Jan 7th 2010, 01:39 PMDrexel28
I gave you this explanation in the original thread.

As for**Krizalid's**answer merely note that . So, for a finite sum and we notice that the sum is the same as which simplifies to . Taking the limit finishes the argument. - Jan 13th 2010, 04:00 AMRhysGM