Possible Duplicate:
Value of $\sum\limits_n x^n$
I have been working on this problem for awhile and have made efforts to try to resolve it. The question is: $$\sum_{n=1}^\infty 7(0.1)^{nā1}$$
Possible Duplicate:
Value of $\sum\limits_n x^n$
I have been working on this problem for awhile and have made efforts to try to resolve it. The question is: $$\sum_{n=1}^\infty 7(0.1)^{nā1}$$