https://www.mathsisfun.com/algebra/sequences-sums-geometric.html
r - -3
a = -4
Xn = Xn-1 * -3 recursive
Xn = -4 (-3)^(n-1) general
= -4 , -4*-3, 12(-3) , -36 * -3
For the following geometric sequence find the recursive formula and the 5th term in the sequence. In your final answer, include all of your work.
{-4, 12, -36, ...}
1 answer