Mathematics, 27.02.2020 04:54, cutboymon

Which of the following is an arithmetic sequence?
2, 4, 8, 16,...
12, 4, 4/3, 16/3...
1/2, -1/2, -3/2, -5/2 ...
1/2, -1/2, 1/2, -1/2 ...

Answers: 3

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Do you know the correct answer?

Which of the following is an arithmetic sequence?
2, 4, 8, 16,...
12, 4, 4/3, 16/3...