00:01
In this problem, we're being asked to find the first three terms for the given recursively defined sequence.
00:06
Well, if you recall, a sub 1 represents the first term.
00:09
So the first term in this sequence is 4.
00:12
Now, to find the second term, we're going to take 2 and substitute it in place of n in our a subn formula.
00:19
So we'll have a sub 2 equal to 1 divided by a sub 2 minus 1.
00:25
Well, 2 minus 1 is equal to 1.
00:27
So a sub 2 will equal to 1 divided by a sub 1.
00:31
But remember, a sub 1 was equal to 4, which means that a.
00:35
2 will be 1 divided by 4...