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  • 01-02-2019
  • Mathematics
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Consider the sequence below.

3 , 1 , 1/3 , 1/9 , ...

Select the explicit function which defines the sequence.

Consider the sequence below 3 1 13 19 Select the explicit function which defines the sequence class=

Respuesta :

a5904640
a5904640 a5904640
  • 01-02-2019

As we can see it's a geometric progression.


q = a2/a1

q = 1/3


so,


an = a1 . q^(n - 1)

an = 3 . (1/3)^(n - 1)


The one which matches is f(n) = 3 . (1/3)^(n - 1)


Alt C.

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