Algebra-1

Question Analysis
This question tests the student's ability to identify the common ratio in a geometric sequence with alternating signs. The sequence provided is .

Key Concept Explanation
In a geometric sequence, each term after the first is found by multiplying the previous term by a constant called the common ratio . The common ratio can be calculated by dividing any term in the sequence by its preceding term.

Step-by-step Solution
1. Calculate the ratio between the second and first terms:

Click "Show Answer" to reveal the answer and analysis