December 2nd, 2008, 09:45 PM
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 | Flow Master | | Join Date: Dec 2007 Location: Zeitgeist
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Quote:
Originally Posted by jermio  Thanks. I have been working on it as a geometric sequence, but cannot figure out what n is. I have to find n before I can find the sum of the geometric sequence.
so a(base n) = a(base 1) (r^n-1)
2=1/8(2^n-1)
divide both sides by 1/8
1/4=2^n-1
and now I am stuck. I feel stupid, but I can't figure out how to get n from here. Any thoughts? | Quote:
Originally Posted by mr fantastic Area of a triangle is 1/2 (base)(height).
So the total area (starting from right most triangle) is 
You're expected to recognise that this is an infinite geometric series .... | *Ahem* ....
__________________ There are two things you should never try to prove: the impossible and the obvious. The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low and achieving our mark. (Michelangelo Buonarroti)
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