If there is an equation available that would be great!
2007-11-04 06:34:10 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(1+700)*(700/2)
2007-11-04 06:38:20 · answer #1 · answered by ssssh 5 · 1⤊ 0⤋
Sn = (n/2)[2a + (n - 1)d]
where a = the first term in the series, and d is the difference between them, therefore:
Here, a = 1, d = 1, n = 700.
S700 = (700/2)(2 + 699)
S700 = 350(701)
S700 = 245,350
2007-11-04 06:41:45 · answer #2 · answered by tinned_tuna 3 · 0⤊ 0⤋
1+700 = 701
2+699 = 701
3+698 = 701
There are 350 such pairs of 701
So sum = 350*701 = 245,350
The formula is S = n(n+1)/2 where n is the last number
2007-11-04 06:42:11 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋
It is called the Gaussian formula after the man who thought it up.
Have a look at this..
http://everything2.com/index.pl?node_id=510243
2007-11-04 06:42:27 · answer #4 · answered by attakkdog 5 · 0⤊ 0⤋
I couldn't even take a Gauss (small joke.
2007-11-04 06:42:31 · answer #5 · answered by Franklin 5 · 0⤊ 0⤋
a calculator?
2007-11-04 06:41:18 · answer #6 · answered by Anonymous · 0⤊ 0⤋