Question

what are the first 4 terms of a geometric sequence if a=.6 and r=1/3

Answer 1

nth term of a geometric sequence is defined by
\[a_n=ar^{n−1}\]

So, the first 4 terms of geometric sequence are
n=1 : a ,
n=2 : ar ,
n=3 : ar^2 ,
n=4 : ar^3

By substituting a =.6 and r = 1/3, now u can find the answer.