Question

find the sum of the first ten terms of 4,2,1,1/2,1/4

Answer 1

is this geo series or arithmetic?

Answer 2

geo

Answer 3

right..?

Answer 4

Yes

Answer 5

Just observe its progression.

Answer 6

U know the formula fr sum of a geo series?

Answer 7

easy

Answer 8

I got 7.992 as my answer, is that right

Answer 9

a+ar+ar^2?

Answer 10

use the formula, stating an answer will get marks removed in exams.

Answer 11

Oh yeah I used the formula,and got that^

Answer 12

r = 1/2 common ratio

Answer 13

can u tell me if its right

Answer 14

ok we cooooool (in samuel L jackson voice)

Answer 15

1023/128

Answer 16

7.9921875

Answer 17

@schmidtdancer you are right :D