Answer
$a_n=(n+1)n$
Work Step by Step
Given : $2,6,12, 30$
Re-arrange as:
$2(1), 3(2), 4(3), 5(4)$
The above sequence yields the relation: $a_n=(n+1)n$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 12 Sequences and Series - 12.3 Analyze Geometric Sequences and Series - 12.3 Exercises - Quiz for Lessons 12.1-12.3 - Page 817: 5
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