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9 March, 03:46

Which sequence could be partially defined by the recursive formula f (n + 1) = f (n) + 2.5 for n ≥ 1?

2.5, 6.25, 15.625, 39.0625, ...

2.5, 5, 10, 20

-10, - 7.5, - 5, - 2.5, ...

-10, - 25, 62.5, 156.25

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  1. 9 March, 03:47
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    -10, - 7.5, - 5, - 2.5, ...

    Is defined by the formula because the next term can be obtained by adding 2.5 to the current one.
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