Homework Help: math30

Posted by alejandro on Monday, September 10, 2012 at 3:52pm.

Write the first three terms of a geometric sequence that has a first term of a = 7 and a common ratio, r, that satisfies r2 = 9.

math30 - Steve, Monday, September 10, 2012 at 6:16pm
r^2 = 9
r = 3 or -3

terms: 7 21 63 . . .
or: 7 -21 63 . . .

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