determine if series is convergent or divergent

the sum from 1 to infinity of (-1)^n(2^(1/n))

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- April 5th 2009, 08:36 PMtwilightstrtest for the series for convergence or divergence 3
determine if series is convergent or divergent

the sum from 1 to infinity of (-1)^n(2^(1/n)) - April 5th 2009, 09:04 PMChris L T521
Its somewhat similar to your other problem here.

Whenever you have a term, you should always first start off with the alternating series test.

The absolute value leaves us with

Since , we need to see if . However, .

Thus, it diverges.