1 year ago

Find an explicit rule for the nth term of the sequence. -5, -25, -125, -625, ...

1 answer:

8 0

An=a1(r)^(n-1)
a1=first erm
r=common ratio

firs term is -5
we times each term by 5 to get next term so r=5

$a_n=-5(5)^{n-1}$ is the explicit formula

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