In an arithmetic sequence, the 2nd term is and the 4th term is . What is the common difference, , of this sequence? ________.
Answer & Analysis
Analysis
Question Analysis
This question tests the student's ability to find the common difference in an arithmetic sequence given two terms.
Key Concept Explanation
The common difference in an arithmetic sequence can be found by subtracting the value of one term from the value of the next term.
Step-by-step Solution
1. Identify the given terms: and .
2. Use the formula for the common difference:
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