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+---- Thread: [Homework] Math Homework Question Help (/showthread.php?tid=5887863)
Math Homework Question Help - My Computer - Sep 23, 2018
Hey everyone. I'm currently struggling with this one math homework question that is driving me insane. Was wondering if anyone could point me in the right direction on how to solve it because I honestly have no idea what to do.
The question is:
Prove that the number of intersections for n-points that are non-collinear is (n+1)! / 4!(n-3)!
Any help would be appreciated.