Q. Complete the recursive formula of the arithmetic sequence−17,−8,1,10,….a(1)=a(n)=a(n−1)+
Identify common difference: Identify the common difference in the sequence by subtracting any term from the term that follows it. For instance, subtract −17 from −8 to find the common difference.Calculation: −8−(−17)=−8+17=9.
Confirm common difference: Confirm the common difference by checking if it is consistent between other consecutive terms. For example, subtract −8 from 1 to see if the common difference is still 9.Calculation: 1−(−8)=1+8=9.
Write recursive formula: Write the recursive formula for the arithmetic sequence using the first term and the common difference. The recursive formula has the form a(n)=a(n−1)+d, where d is the common difference.Since the first term a(1) is given as −17 and the common difference d is 9, the recursive formula is a(n)=a(n−1)+9.
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