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March 27, 2015

March 27, 2015

Posted by **alejandro** on Thursday, August 23, 2012 at 5:34pm.

Find a recursive formula that defines this sequence.

The answer of this question is:

an=an-1*1/2

Somebody can help me and let me know why is 1/2 on the formula? please please!!!

I am not sure if the formula is the right one!!

- math30 -
**Damon**, Thursday, August 23, 2012 at 6:46pmr = .5

Just as in your other problem, r in a geometric sequence is the ratio of every term to the one before it. That is the very meaning of a geometric sequence.

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