Question: Consider the sequence an = ncos(n) 2n1 . a) Write the first five terms of an: , , , , . b) Determine whether the

Consider the sequence an = ncos(nπ) 2n−1 .

a) Write the first five terms of an: , , , , .

b) Determine whether the sequence converges or diverges. If it is convergent, find its limit. (When entering the limit: If the sequence converges, enter the limit. If the sequence diverges to infinity or negative infinity, enter ”infinity” or ”-infinity”. If the limit does not exist, enter ”DNE”.) Converges or diverges? lim n→∞ an = Answer(s) submitted:

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