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Chapter 12: Q 80. (page 1184)

In the following exercises, determine if the sequence is arithmetic and if so, indicate the common difference.

11,5,鈭�1,鈭�7鈭�13,鈭�19,鈥�

Short Answer

Expert verified

The value of dis -6.

Step by step solution

01

Step 1. Given Information.

Consider the given information.

11,5,鈭�1,鈭�7鈭�13,鈭�19,鈥�

02

Step 2. Find the consecutive difference of the sequence.   

Find the difference between the consecutive terms.

5-11=-6-1-5=-6-7--1=-6-13--7=-6-19--13=-6

  • Since the common difference is the same.
  • The value of the common difference isd=-6.
03

Step 3. Conclusion.

The sequence is an arithmetic sequence and the common difference is d=-6.

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