Algebra-1

To write the recursive formula for the sequence 7,5,3,1,… (where n>1), follow these steps:

Identify the common difference: Calculate the differences between consecutive terms:

5−7=−2

3−5=−2

1−3=−2 

The common difference d is −2.

Write the recursive formula:

The general form of the recursive formula for an arithmetic sequence is:

= + d

In this case, the common difference d is −2. The first term