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April 20, 2014

Homework Help: Math

Posted by Danielle on Sunday, October 6, 2013 at 11:50pm.

A sociology seminar has 7 members

(a) They begin each meeting with each member shaking hands with all the other members. No one shakes another member's hand twice. How many handshakes take place?

(b)The professor shakes hands with each member of the seminar and in a different sequence each time. How many sequences of handshakes are possible?
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