Geometry (sorta)
posted by Shay on .
seven people meet and shake hands with eachother how many handshakes occur?
(second question)
using inductive reasoning, write a formula for the number of handshakes if the number of people is n

nCr = n!/(r!*(nr)!) Think about that.
You need to go through the reasoning. Try making a diagram with 4 folks (A,B,C,D) shaking hands