Question

what is the value of the fourth term in geometric sequence for which A1 is equal to 15 and R is equal to 1/3 express your answer as fraction .

Answer 1

We will solve as follows:

`a_n=a_1r^(n-1)`

Then:

`a_4=(15)\cdot((1)/(3))^(4-1)\Rightarrow a_4=(5)/(9)`

So, the fourth term in the geometric sequence is 5/9.