juanito12605 juanito12605

14-11-2019
Mathematics

contestada

Write an explicit formula for each recursive formula. an=an-1(-5); a1=4

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jimrgrant1 jimrgrant1

14-11-2019

Answer:

[tex]a_{n}[/tex] = 4[tex](-5)^{n-1}[/tex]

Step-by-step explanation:

The explicit formula for a geometric sequence is

[tex]a_{n}[/tex] = a₁[tex](r)^{n-1}[/tex]

where a₁ is the first term and r the common ratio

Here a₁ = 4 and r = - 5

[tex]a_{n}[/tex] = 4[tex](-5)^{n-1}[/tex]

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