00:01
We want to write down the first five terms of the geometric sequence, where a1 is equal to 7 and r is equal to 4.
00:12
So in fact, we're actually already have our first term.
00:16
So our first term is a1, and we've been given that it's equal to 7.
00:19
So let's go ahead and write that down.
00:22
A1 is equal to 7.
00:24
So now we need to find the second term, the third term, the fourth term, and the fifth term.
00:31
Term.
00:33
So, geometric sequence, what it means is that we have a common ratio, and the common ratio in this case is 4.
00:39
So that means each term is going to be the previous term multiplied by the common ratio.
00:46
So that tells us, a2 is going to be a1 times the common ratio r...