Find a formula for the nth term of the sequence.0, 0, 2, 2, 0, 0, 2, 2 (alternating 0's and 2's in pairs)

A. an = 1 - (-1)n(n-1)
B. an = 1 + (-1)n(n+1)
C. an = 1 + (-1)n(n-1)
D. an = 1 + (-1)n(n + 1)/2


Answer: D

Mathematics

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A.
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