Question

3,6, 12, 24..... find sn​

Answer 1

Answer:divide by 3 then 2then again 2then 2

3,6,12,24

1,2,4,8

1,1,2,4

1,1,1,2

1,1,1,1

Answer 2

What's the last term?

If u have the last term then the formula to solve this ap is

a + (n-1)d = an(from here you will find the value of n)

(an is the last term

a is the first term

N is the number of terms)

Now,

Sñ = n/2 (a+an)

(From here you will find the total sum of an AP)