Mathematics for IGCSE & O level - Sequences (Section 1 - No. 39) | ExamPlay

Mathematics for IGCSE & O level - Sequences (Section 1 - No. 39)

What is the formula for the nth term of the sequence: 1, 8, 15, 22, ...?

7n-6

6n-5

8n-7

n+7

解释

The difference between terms is 7. Test for the first term, 7*1-6=1

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