Calculate the sum of the series whose partial sums are given.

When we calculate the sum of the series C∞, n=1 ∑ an
whose partial sums are given
sn = 2 − 9(0.9)ⁿ
We can get an answer which is 2.
It has an infinite number of terms, the infinite series. The partial sum is the sum of the first n terms, Sn. The answer in this question is 2.

3/5 chance.

Step-by-step explanation:

2 + 3 = 5 total

3 red

2 white

3/5 chance that it'll be red.