Answer:
a(n) = 3*(2)^(n-1)
Step-by-step explanation:
Each new term is found by multiplying the previous term by 2. The first term is 3. Using the standard explicit formula for a geometric series, we get:
a(n) = a(1)*r^(n-1). In this particular case we have a(n) = 3*(2)^(n-1).
