An = 5 × an-1 and a1 = 3.

what is a5
enter your answer in the box.
a5 =

Step-by-step explanation:

The geometric sequence is represented by

.......... (1) and

So,

{Putting n = 2}

Again, putting n = 3 in equation (1), we get

Again, putting n = 4 in equation (1), we get

Again, putting n = 5 in equation (1), we get

(Answer)

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

answer: sine

step-by-step explanation: