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How do you determine if a Sequence is not monotonic? Also if its just inc. or dec. its monotonic?

For example.

Seq=An= 1/(2n+3)

First 4 terms are {1/5,1/7,1/9,1/11,...}

So its decreasing...and I guess monotonic?

And how would you determine if that sequences is bounded?

It looks like a upper bound of 1/5 but a lower bound of 0?

Help?

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# How to determine if a sequence is Inc, Dec, or not monotonic? Aso if its bounded?

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