Question

1. Find the 12th term of the geometric sequence 4, 8, 16, 32, ....

(Instruction: Determine a1 and then use the formula an=a1rn-1-1 to find a12)

Answer 1

Answer: 8192

Explanation:

This is a geometer series. From the question. The first term is a which is 4. The common ratio is 8/4 = 2. n is 12 since we are looking for the 12th term.

The solution is attached below. The answer is 8192