Q. Complete the recursive formula of the arithmetic sequence−16,−33,−50,−67,….c(1)=c(n)=c(n−1)+□
Identify the pattern: Identify the pattern in the sequence to determine the common difference. The sequence is −16, −33, −50, −67, .... To find the common difference, subtract the first term from the second term: −33−(−16)=−33+16=−17.
Verify the common difference: Verify the common difference by subtracting the second term from the third term: −50−(−33)=−50+33=−17. The common difference is consistent, confirming that the sequence is arithmetic with a common difference of −17.
Write the recursive formula: Write the recursive formula for the arithmetic sequence. The recursive formula has the form c(n)=c(n−1)+d, where d is the common difference. Since we have determined that the common difference is −17, the recursive formula is c(n)=c(n−1)−17.
State the initial term: State the initial term of the sequence in the recursive formula. The first term, c(1), is given as −16. Therefore, the complete recursive formula is:c(1)=−16,c(n) = c(n-1) - 17 \text{ for } n > 1.
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