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
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.