2006-07-01 15:41:13 · 7 answers · asked by JaniS 1 in Education & Reference ➔ Homework Help
The sum of n=1 to infinity of (2^n)/(-8)
2^n means "2 to the nth power"
(Spectre's answer does not include the first term, -1/4--so his won't quite work.)
2006-07-01 15:55:05 · answer #1 · answered by tdw 4 · 0⤊ 0⤋
E (-1/4)(2)^N
E = Summation from N=1 to Inf.
2006-07-01 22:47:43 · answer #2 · answered by Spectre 2 · 0⤊ 0⤋
Summation means to add. So in this case it is asking you to add all the numbers. It probably is not asking for the pattern. So the answer would be: -15 3/4
2006-07-01 23:02:54 · answer #3 · answered by Angemonic 2 · 0⤊ 0⤋
I am not sure what summation means but you have a sequence that is doubling each number before it. It will continue on -16, -32, -64, and so on.
2006-07-01 22:46:25 · answer #4 · answered by CATHY C 3 · 0⤊ 0⤋
15 3/4.
2006-07-01 22:44:36 · answer #5 · answered by sunshinegrover 3 · 0⤊ 0⤋
-16
2006-07-01 22:44:37 · answer #6 · answered by butrcupps 6 · 0⤊ 0⤋
-1/4(1-2^(6+1))/(1-2)
= -31.75
2006-07-01 22:58:10 · answer #7 · answered by bgrt 3 · 0⤊ 0⤋