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


Answer: A

Mathematics

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