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10-03-2019
Mathematics

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What is the 4th term of the geometric sequence?

1st: 4/9
2nd: 4/3,
3rd: 4
4th: . . . . .

Respuesta :

10-03-2019

Answer:

4th: 12

Step-by-step explanation:

[tex]a_1=\dfrac{4}{9}\\\\a_2=\dfrac{4}{9}\cdot3=\dfrac{4}{3}\\\\a_3=\dfrac{4}{3}\cdot3=4\\\\a_4=4\cdot3=12\\\vdots\\\\a_n=\dfrac{4}{9}\cdot3^{n-1}[/tex]

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