- #1
dan38
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Homework Statement
Okay from what I have learned to prove that a series converges via the alternating test, you must prove the following conditions
Homework Equations
1) an > 0
2) lim an (n--> infinity) = 0
and
3) a(n+1) < an
The Attempt at a Solution
However recently I've been encountering questions in my textbook where the first condition isn't filled, but the others two are and the answer is that it is converging
Doing further research online, I've found that most people simply disregard the first condition as well, i.e.
ww.youtube.com/watch?v=8qhVGeCkgGg
So Would anyone be able to clarify why the first condition is seemingly irrelevant?