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write an equation to decribe the sequence below. use n to represent the position of a term in the sequence, where n=1 for the first term
9,-18,36..
write your answer using decimals and integers
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The sequence is alternating between positive and negative values, and each term is double the absolute value of the previous term. Therefore, we can write the equation as:
An = (-1)^(n+1) * (9 * 2^(n-1))
where An represents the nth term in the sequence.