Someone plz help Describe what a geometric series is, you should include the formula in your description.

You can take the sum of a finite number of terms of a geometric sequence. And, for reasons you'll study in calculus, you can take the sum of an infinite geometric sequence, but only in the special circumstance that the common ratio r is between –1 and 1; that is, you have to have | r | < 1.

this is a few formulas : Sn=a1(1−rn)1−r,r≠1,

Example 3: Find the sum of the first 8 terms of the geometric series if a1=1 and r=2 .

Step-by-step explanation:

do your own work and don"t cheat.

step-by-step explanation:

step-by-step explanation: the answer is 27. first multiply .32 by 25 which equals 8. then add 8 to 25 which gives you 33. then you subtract that from 6 since she gave 6 to her brother.

,, add !