I have found a formula to find the sum of all numbers between A and B, where B>A
It's like so
(B^2-A^2-B-A)/2=the sum of all numbers between A and B
Ex. A=2 B=6
(6^2-2^2-6-2)/2= 3+4+5
(36-4-6-2)/2=12
(24)/2=12
12=12
Could you please maybe explain and eloborate on this cool formula
It's like so
(B^2-A^2-B-A)/2=the sum of all numbers between A and B
Ex. A=2 B=6
(6^2-2^2-6-2)/2= 3+4+5
(36-4-6-2)/2=12
(24)/2=12
12=12
Could you please maybe explain and eloborate on this cool formula