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Explicit formulas for arithmetic sequences

Vera and Fenyang were asked to find an explicit formula for the sequence 26,10,6,22,...26,10,-6,-22,...
Vera said the formula is g(n)=2616(n1)g(n)=26-16(n-1).
Fenyang said the formula is g(n)=4216ng(n)=42-16n.
Which one of them is right?
Choose 1 answer:
Choose 1 answer: