00:01
So in this question, they say, i want to find a formula for the nth term of the sequence.
00:06
The sequence is 1, negative 1, 1, negative 1, 1, 1, going back and forth forever and ever.
00:13
So i am looking for an a sub -n rule this time.
00:19
And so the idea is, i can write these all as powers of negative 1.
00:27
Namely i could write 1 as negative 1 quantity square.
00:36
The negative 1, i can write that as negative 1 quantity q.
00:45
1 can be written as negative 1 quantity to the 4th.
00:53
The negative 1 can be written as negative 1 quantity to the 5th.
01:00
1 can be written as negative 1 quantity to the 6th, etc...