The first term of a geometric sequence is 8 and the fourth term is 216. What is the sum of the first 12 terms of the correspondi

Question

2 years ago

15

ng series? A. 2,125,760 B. 6,377,288 C. 236,192 D. 708,584

1 answer:

Leokris [45] · Answer 1 · 2022-07-07T06:48:11+03:00

4 0

Answer:

2,125,760

Step-by-step explanation:

The first term (a) is 8

The fourth term is 216

Hence the sum of the first 12 term can be calculated as follows

= 8-8(3)^12/1-3

= 8-24^12/-2

= 2,125,760

The sum of first 12 terms is 2,125,760