Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 12 - Section 12.2 - Arithmetic Sequences - 12.2 Exercises: 45

Answer

$a_{1}=706;$ $a_{2}=712$

Work Step by Step

$a_{n}=a+\left( n-1\right) d\Rightarrow a_{50}=a+\left( 50-1\right) \times 6=1000\Rightarrow a=1000-49\times 6=706$ $d=6$ $a_{n}=a+\left( n-1\right) d\Rightarrow a_{1}=a+\left( 1-1\right) d=a=706;a_{2}=a+\left( 2-1\right) \times 6=706+6=712$
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