Compute the maximum number of intersections of 17 straight lines.
2 answers
Please do not switch names -- as you've done for the last ten posts.
Lines....Intersections
..1...........0
..2...........1
..3...........3
..4...........6
..5..........10
or N = n(n - 1)/2
..1...........0
..2...........1
..3...........3
..4...........6
..5..........10
or N = n(n - 1)/2
1 answer