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This is a geometric sequence of the form a, ar, ar^2, ar^3, ... where a is the first term and r is the common ratio.

In our case, the first term a = 2, and the common ratio r = 5.

The nth term of such a sequence is

an = a r^(n -1).

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โˆ™ 2009-03-18 03:22:45
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