Question

Find the 14th term of the geometric sequence 7, 28, 112,

Answer 1

a(14)=469762048

Explanation:

geometric sequence= a(n)=a*r^(n-1)

we have:

a=7

r=28/7=4

So:

a(14)=7*4^(14-1)

=7*4^(13)

=469762048

hope this helps