1)) Write an equation to describe the sequence below. Use n to represent the position of a term in the sequence where n=1 for the first term. -10,(-20)/(3),(-40)/(9),ldots 1)) Write your answer using proper fractions,improper fractions, and integers. a_(n)=square (square )^n-1

## Step 1: Identify the first term### The first term, , is -10.## Step 2: Calculate the common ratio### Divide the second term by the first term: . Divide the third term by the second term: . The common ratio, , is .## Step 3: Construct the equation### Plug and into the formula to get .