Watch help videoWhat is a formula for the nth term of the given sequence?4,2,1...

Question

asked Nov 28, 2023 184k views

2 Answers

Tang · Answer 1 · 2023-12-02T16:48:07+0000

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data

4,2,1...

nth term = ?

Step 02:

geometric sequence

an = a1 * r ^ (n - 1)

a1 = 4

a2 = 2

r = a2 / a1 = 2 / 4 = 1 / 2

an = a1 * r ^ (n - 1)