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Multiple Choice
Write the first 5 terms of the arithmetic sequence, given the first term and the common difference. (B)
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Identify the general form of an arithmetic sequence, which is given by the formula: \(a_n = a_1 + (n - 1) d\), where \(a_n\) is the nth term, \(a_1\) is the first term, \(d\) is the common difference, and \(n\) is the term number.
Determine the first term \(a_1\) of the sequence from the given information or problem statement.
Find the common difference \(d\) by subtracting the first term from the second term, i.e., \(d = a_2 - a_1\).
Use the formula \(a_n = a_1 + (n - 1) d\) to write an expression for the nth term of the sequence.
If asked to find a specific term or sum of terms, substitute the given value of \(n\) into the formula or use the sum formula for arithmetic sequences: \(S_n = \frac{n}{2} (a_1 + a_n)\).