Homework Help: math

Posted by Ali on Friday, November 5, 2010 at 1:46pm.

In a Geometric progression the sum of its first 4 term is equal 15, and the sum of the next term is equal to 15/16. find its first term and its common ratio

math - Damaris, Thursday, December 2, 2010 at 12:56am
the first term of a geometric progession is 5 and the third term is 20. Find the commonratio of this progession.

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