A geometric sequence is a sequence where each term is found by multiplying the previous term by a constant value called the common ratio. In this sequence, the common ratio is 1/2. Here's how it works: - 1 * (1/2) = 1/2- 1/2 * (1/2) = 1/4- 1/4 * (1/2) = 1/8 Therefore, the complete sequence is: 1, 1/2, 1/4, 1/8,...