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AlgebraArithmetic Progressions

Is it an AP?

Enter four terms and test for a common difference.

Controls

3
7
11
15

Live result

Differences
4, 4, 4
Is an AP?
Yes
Common difference
4
Arithmetic progression — terms growing by dDifferences: 4, 4, 4
371115a = 3, d = 4 — each step adds d
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A sequence is an AP only if the difference between consecutive terms is constant.

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