Write the first five terms of the sequence. Determine whether the sequence is arithmetic. If so, find the common difference. (Assume that n begins with 1.)
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an = (2n)n
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A. 2, 8, 24, 64, 160Arithmetic sequenced = -2
B. 160, 64, 24, 8, 2Arithmetic sequenced = 2
C. 160, 64, 24, 8, 2Not an Arithmetic sequence
D. 2, 8, 24, 64, 160Arithmetic sequenced = 2
E. 2, 8, 24, 64, 160Not an Arithmetic sequence
Answer: E
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