Write a formula for this sequence: 8,-1,-10,-19

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asked Dec 2, 2019 9.3k views

1 Answer

Ddlab · Answer 1 · 2019-12-07T05:21:14+0000

This is an arith. sequence, and the common difference is -9.

a(n+1) = a(n)-9, with a(1)=8. Thus, if we look at the first term, we see 8; subracting 9 from 8 produces the second term (-1).

Write a formula for this sequence: 8,-1,-10,-19

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