Question

When finding the sum of the arithmetic series 4 + 1 + –2 + –5 + –8 + –11, you will have a step of work that contains the number –3. Use complete sentences to describe how the –3 was calculated and what it means.

Answer 1

-3 is the common difference which is obtained by 1-4=-3
In arithmetic series next term is obtained by adding or subtracting a certain number hwihc is called common difference which is equal to the second term -first term or difference between any two tow terms solution is in the attachment