Use the initial term and the recursive formula to find an explicit formula for the sequence an. Write your answer in simplest form.a1=47an=an−1+2an=_____
Q. Use the initial term and the recursive formula to find an explicit formula for the sequence an. Write your answer in simplest form.a1=47an=an−1+2an=_____
Identify Initial Term and Recursive Formula: Initial term is a1=47, and the recursive formula is an=an−1+2. This is an arithmetic sequence with a common difference of 2.
Arithmetic Sequence Common Difference: The explicit formula for an arithmetic sequence is an=a1+d(n−1), where d is the common difference.
Explicit Formula Substitution: Substitute a1=47 and d=2 into the formula: an=47+2(n−1).
Simplify Formula: Simplify the formula: an=47+2n−2.
Combine Like Terms: Combine like terms: an=2n+45.
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