FInd a formula for the general term a_n of the sequence assumin the pattern of the firwst few terms continue

Question

{ 2/2 , 2/4, 2/8, 2/16, 2/32, ....}

Assume the first term is a_n

a_n = ???

Answer 1

a_n = 2(1/2)^n

a_1 = 2(1/2 = 2/2

a_2 = 2(1/2)^2 = 2/4

a_3 = 2(1/2)^3 = 2/8