00:01
Alright, in this particular case, we just need to find the annette term of the arithmetic sequence, right? we have a sequence given here, which is 3, 9 by 4, okay? 3 by 2, then 3 by 4, then 0, and then in this way continues.
00:15
This is the arithmetic sequence.
00:17
So clear cut, we have a is equal to 3 and we have common difference is equals to, if i just try to find, that is 9 by 4, minus 3, okay? so 9 minus 12 by 4, which simply comes out to be minus 3 by 4.
00:30
This is a decreasing ap.
00:32
The n -8 term is given by a plus n -1 times of t.
00:35
On putting the value here, we have 3 plus n -1 times of minus 3 by 4...