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July 3, 2015

Homework Help: Math 12

Posted by Serina on Wednesday, January 5, 2011 at 5:25am.

sum of 2nd and 5th terms of a geometric sequence is 13. the sum of the 3rd and 6th is -39.

determine:
a) the ratio "r" of the sequence
b) the first term "a" of the sequence

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