00:01
So we have the following series, sum, n equals 1 to infinity, of n divided by n plus 1 times through the n minus 1.
00:18
And we would like to determine its convergence by using the comparison test.
00:24
So the first thing we observe is that if we only look up this part, we can say that behaves, and this is just an observation, it behaves like 1.
00:37
What this means is that when n goes to infinity, if we only look at this part, it converges to one.
00:43
You can see it by dividing both sides by n, top and bottom, then you get 1 over 1 plus 1 over n, 1 over n goes to 0, therefore this goes to 1.
00:53
So it makes sense to choose, make sense to choose, you know, 1 over to the n minus 1 to do the comparison of the limit.
01:07
So what we do is we're going to divide this sequence by this one and compute the limit.
01:14
So let's do it...