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Mathematics 11 Online
OpenStudy (anonymous):

Determine whether each of the following sequences are arithmetic, geometric or neither. If arithmetic, state the common difference. If geometric, state the common ratio. 4, 16, 36, 64, ...

OpenStudy (anonymous):

\[\sum_{n=1}^{\infty} (2n)^2\]

OpenStudy (akashdeepdeb):

Neither. Because they do not have a common ratio nor do they have a common difference.

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