- #1
arl146
- 343
- 1
Determine whether the series is convergent or divergent. If convergent, find its sum.
Summation (n=1 to infinity) (1+2^n) / (3^n)
I said that it is convergent from looking at the terms. The first couple of terms, you get:
1 + 5/9 + 9/27 + 17/108 + 32/243
It seems as if the numbers are converging to a number.
I don't know how to find the sum. All I know is, the sum of a series is equal to the limit of the sequence of partial sums. And from here I don't know what to do
Summation (n=1 to infinity) (1+2^n) / (3^n)
I said that it is convergent from looking at the terms. The first couple of terms, you get:
1 + 5/9 + 9/27 + 17/108 + 32/243
It seems as if the numbers are converging to a number.
I don't know how to find the sum. All I know is, the sum of a series is equal to the limit of the sequence of partial sums. And from here I don't know what to do