Chapter 9 - Conic Sections, Sequences, and Series - 9.3 Arithmetic Sequences - 9.3 Exercises - Page 727: 2

$-7,-4,-1,2$

Work Step by Step

$a_n=-7+(n-1)3$ $a_1=-7$ $a_2=-7+3=-4$ $a_3=-7+2\times3=-1$ $a_4=-7+3\times3=2$

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