Use the initial term and the recursive formula to find an explicit formula for the sequence an. Write your answer in simplest form.a1=29an=an−1−12an=_____
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=29an=an−1−12an=_____
Initial Term and Recursive Formula: Initial term is a1=29. Recursive formula is an=an−1−12. This is an arithmetic sequence because each term is found by subtracting a constant from the previous term.
Common Difference: The common difference d in this arithmetic sequence is −12, since each term is 12 less than the previous term.
Explicit Formula: The explicit formula for an arithmetic sequence is an=a1+d(n−1). We know a1=29 and d=−12.
Substitute Values: Substitute the values into the formula: an=29+(−12)(n−1).
Simplify Formula: Simplify the formula: an=29−12n+12.
Combine Like Terms: Combine like terms: an=41−12n.
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