Algebra-1

Question Analysis
The question assesses the student's ability to identify the common ratio and use the explicit formula to find a specific term in a geometric sequence.

Key Concept Explanation
The common ratio can be found by dividing any term by its preceding term. The explicit formula for the -th term is ().

Step-by-step Solution
1. Identify the first term and the second term .
2. Calculate the common ratio: .
3. Substitute and into the explicit formula: