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Let Sn and S'4 denote respectively the sum and the sum of the squares of first n natural numbers. If an=Sn'Sn, n∈N. Then a1, a2, a3,_____, an, _____ forms an ______ with ______ .

Answer» Let Sn and S'4 denote respectively the sum and the sum of the squares of first n natural numbers. If an=Sn'Sn, nN. Then a1, a2, a3,_____, an, _____ forms an ______ with ______ .


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