Mathematics for IGCSE & O level - Sequences (Section 3 - No. 2) | ExamPlay

Mathematics for IGCSE & O level - Sequences (Section 3 - No. 2)

Which sequence is a quadratic sequence?

2, 5, 8, 11, ...

1, 4, 9, 16, ...

3, 9, 27, 81, ...

4, 8, 12, 16, ...

解释

Quadratic sequence has a constant second difference.

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