For what values of x will the fol owing infinite geometric sequence series...

Jul 2010
3
0
have a finite sum
(x+1) + (x+1)^2 + (x+1)^3 +....
 
Jan 2010
278
138
Geometric series converges if |r| < 1 (where r is the common ratio). Plug in x + 1 for r...
\(\displaystyle |x + 1| < 1\)
...and solve for x.
 
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