elizabethshull10 elizabethshull10

14-08-2020
Mathematics

contestada

find a9 if the geometric sequence is: 567,-189,63

Respuesta :

Muscardinus Muscardinus

20-08-2020

Answer:

3720087

Step-by-step explanation:

Given that,

A geometric sequence : 567,-189,63

First term is : 567

Common ratio : 567/-189 = -3

The nth term of a GP is given by :

[tex]a_n=ar^{n-1}[/tex]

n = 9

So,

[tex]a_9=567\times (-3)^{9-1}\\\\a_9=3720087[/tex]

So, the 9th term of the geometric sequence is 3720087.

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