The given pattern continues. Write down the nth term of the sequence {an} suggested by the pattern.2, -4, 6, -8, ...
A. an = (-1)n ? 2
B. an = (-1)n ? 2n
C. an = (-1)n + 1 ? 2n
D. an = (-1)n + 1 ? 2
Answer: C
Mathematics
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