Which of the following sequences is an arithmetic sequence? 1, 1/2, 0, - 1/2

48, 24, 12, 6, 3, ...

1, 4, 9, 16, 25, 36

Answer 3
Choose...
3x, x, x/3, x/9

1, 0, 1, -1, -2, -3,

1/2, 1/3, 1/4, 1/5, ...

3, 7, 11, 15, 19

9.5, 7.5, 5.5, 3.5, …

-2, 4, -8, 16, …

4, 16, 64, 256

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