All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Numbers
Alternating Pascal (Posted on 2011-12-08) Difficulty: 2 of 5
Prove that for any row of Pascal's Triangle if you alternately subtract and add terms you always get 0.

Note: this is obvious for odd rows [1-3+3-1=0]
but not so obvious for even rows [1-4+6-4+1=0]

See The Solution Submitted by Jer    
No Rating

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Some Thoughtsre: Also true for pascal-like tables(spoiler)Ady TZIDON2011-12-09 10:03:53
SolutionAlso true for pascal-like tables(spoiler)Steve Herman2011-12-08 13:19:26
Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (7)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2019 by Animus Pactum Consulting. All rights reserved. Privacy Information