00:01
In this question, we have a recursive defined sequence, a n plus 1 is equal to 2a n minus 1 and the initial term a1 is equal to 2.
00:17
We need to find the next 4 terms.
00:20
Let's see how to solve this question.
00:24
Substitute n is equal to 1 in a .n plus 1 is equal to 2a n minus 1.
00:39
So we get a1 plus 1 is equal to 2, a1 minus 1.
00:48
So this will become a2 is equal to 2.
00:52
We have the value of a1 2 minus 1.
00:56
So this will be equal to 2 into 2 is 4 and 4 minus 1 will be equal to 3.
01:02
So a2 is equal to 3.
01:06
Similarly, substitute n is equal to 2.
01:14
2 in an plus 1 is equal to 2a n minus 1.
01:21
So we get a 2 plus 1 is equal to 2 a 2 minus 1...