Question

List the first four terms of a geometric sequence with t1 = 4 and tn = -3tn-1.

Answer 1

You have to simply put n = 2, 3 and then 4 in :

\[\large t_n = -3t_{n - 1}\]

For n = 2 you will get 2nd term..
Like wise find the other two terms also..

Answer 2

Tell me what do you get when you put n= 2 in that equation ??