Question

Given a geometric sequence with a1=3 and r=.5, write the first three terms of the sequence.

Answer 1

a1 = 3

r = 0.5

a2 = a1*r

a2 = 3*1/2

a2 = 1.5

a3 = a(r)^2

a3 = 3(1/2)^2

a3 = 3/4