Answer
The difference between the consecutive terms is $-5$
Work Step by Step
Here, $a_2-a_1=3-8=-5;\\ a_3-a_2=-2-3=-5;\\a_4-a_3=-7-(-2)=-5;\\a_5-a_4=-12-(-7)=-5$
It has been seen that the difference between the consecutive terms is $-5$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 10 - Section 10.1 - Sequences and Summation Notation - Exercise Set - Page 1051: 107
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