What Is The Sum Of 1+2+3+4...+n?
Bakakun
1+2=3 , 1+2+3=6 ,1+2+3+4=10, 1+2+3+4+5=15... we can continue like this. How can we calculate 1+2+3+4+....+n if n is an integer? Here is the answer
we can say that the sum of 1+2+3+4+.....+n equals to an integer like a
1+2+3+4+....+n= a Now also we can say n+.......4+3+2+1= a too
1+2+3+4+....+n + n+n-1+n-2+....+3+2+1= 2a. Then we got
n.(n+1)=2a if we divide with 2 each side , a=n.(n+1)/2
This method was invented by a very clever German Mathematician Gauss.
Comments
I've heard about Gauss method.
cool
o7
math is for girls
https://images-cdn.9gag.com/photo/aKxV3zQ_700b.jpg
Amd for me my darling 😘
And 😆😆😆😆😆
inside you are a girl 😁
cool
I really don't have a clue