I need help on this I don't know nothing
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The nth term is (presuming the denominator on the first is a typo)
The ratio of successive terms is
The limit is -1/3, absolute value less than 1, so the series converges. It has a sum -- that's what converges means.
The ratio of successive terms is
The limit is -1/3, absolute value less than 1, so the series converges. It has a sum -- that's what converges means.