This one is super hard

Jaapze asked May 1, 2023

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10 votes

Jaapze asked May 1, 2023

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11 votes

8, 17, 26...

The difference is d = 9

8 + 9 = 17

17 + 9 = 26

The general formula for an arithmetic progression is An = A1 + (n -1)d

An = 8 + (n -1)*9

ZZB answered May 4, 2023

by ZZB

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