# Math Help - Terms Geometric

1. ## Terms Geometric

if anyone can help the question is

identify the general term for ui for the geometric progression.

4 + 2 + 1 + 1/2 +1/4 +........

2. Originally Posted by gracey
if anyone can help the question is

identify the general term for ui for the geometric progression.

4 + 2 + 1 + 1/2 +1/4 +........
Hint: the common ration is 1/2, the first term is 4

can you continue?

how did i find the common ratio?

3. Originally Posted by gracey
if anyone can help the question is

identify the general term for ui for the geometric progression.

4 + 2 + 1 + 1/2 +1/4 +........
This geometric series is simply: $\sum_{n=0}^{\infty}\left(\frac{1}{2}\right)^{n-2}$

4. thankyou