Determine the common ratio and find the next three terms of the geometric sequence.i, -1, -i, ...

Divide the second term by the first to find the common ratio: −1 ÷ i = i. Multiply each term by i to continue the sequence: (−i)i = 1, then 1 · i = i, and i · i = −1. The common ratio is i, and the next three terms are 1, i, −1, which is choice A.

AI-written and checked against the verified answer.