Answer: (ab)n/2.
- A (ab)n/2
- B (ab)n
- C ab × n
- D n√(ab)
Correct answer: A. (ab)n/2
Explanation: The n geometric means form a GP between a and b. Their product = (ab)n/2. This follows because the means pair up symmetrically.
Bar heights for AP 2, 5, 8, 11 with the common difference d=3 marked between consecutive terms.
Concept context
Arithmetic progressions, geometric progressions, and sums