celly786712 celly786712
  • 01-04-2020
  • Mathematics
contestada

Which of the following is a geometric sequence?

Which of the following is a geometric sequence class=

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hrididhar28 hrididhar28
  • 02-04-2020

Answer:

A is an geometric sequence cause it is multiplying by -3 as it continues. So, as you are seeing below:

3*-3=-9

-9*-3=27

27*-3=-81

And for the other options , some of them were increasing and some were decreasing. They all are arithmetic sequence cause they all include common difference except A. A includes common ratio and that's why it's an geometric sequence.

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