Answer: 6
Explanation:
ax/ay=r^(x-y)
in this case it will be
a4/a1=r^(4-1)
24/3=r^3
8=r^3
r=2
----------------------------------
an=a1×r^(n-1) ⇔ geometric sequence formula
a2=3×2^(2-1)
a2=3×2^1
a2=3×2
a2=6
4.6m questions
6.0m answers