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

Home > Just Math
It's all in the roots! (Posted on 2004-06-04) Difficulty: 2 of 5
Simplify the following:
√(3 - √5) + √(4 + √7) + √(6 - √35)

No Solution Yet Submitted by Purna    
Rating: 3.2857 (7 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution Long answer | Comment 1 of 8
Since √(a√b))= √(a+c) √(a-c) if c=√(a-b), then the sum turns into √(5/2)-√(1/2) + √(7/2)+√(1/2) + √(7/2)-√(5/2) = √14.
  Posted by e.g. on 2004-06-04 12:50:10
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information