Q&A #3398

Teachers' Lounge Discussion: Permutations and counting arrangements

T2T || FAQ || Ask T2T || Teachers' Lounge || Browse || Search || T2T Associates || About T2T

View entire discussion
[<< prev] [ next >>]

From: Andrea

To: Teacher2Teacher Public Discussion
Date: 2000101815:38:16
Subject: HELP

I am a grade 13 or OAC student in Canada. I am currently taking a
Finite class the is learning, at the moment, Combinatorics.  I am
having an extreamly difficult time with the concept of this chapter
and was wondering if someone would be able to help.  Here is an
example question that has me stuck...


             1 over (a-1)!n! + 1 over a!(n-1)! = a+n over a!n!

Post a reply to this message
Post a related public discussion message
Ask Teacher2Teacher a new question

[Privacy Policy] [Terms of Use]

Math Forum Home || The Math Library || Quick Reference || Math Forum Search

Teacher2Teacher - T2T ®
© 1994- The Math Forum at NCTM. All rights reserved.