Asked by Anonymous666_2
For the geometric sequence, -100,50,-25,12.5, find the next two terms and the general term.
Answers
Answered by
Steve
the common ratio can be found by dividing any term by the previous one.
clearly r = -1/2
So, Tn = -100 (-1/2)^(n-1) = 200/(-2)^n
clearly r = -1/2
So, Tn = -100 (-1/2)^(n-1) = 200/(-2)^n