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

Home > Just Math > Calculus
A Self Intersecting Curve (Posted on 2005-12-16) Difficulty: 5 of 5
The curve defined by the relation x^3+y^3=3xy intersects itself at the origin and forms a loop. Find the area enclosed by the loop.

See The Solution Submitted by Brian Smith    
Rating: 4.5000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: A solution; Not quite | Comment 2 of 9 |
(In reply to A solution by goFish)

Clearly (0,0) and (1.5,1.5) are points on this curve, but the problem asks for the AREA enclosed by the loop.

The curve is symmetrical around the line y=x

It may help to do a transformation that rotates the x and y axes 45 degrees with a subsequent change in the equation.   But I'll have to look up how to do that again.

Or, polar coordinates (as someone else mentioned)

  Posted by Larry on 2005-12-16 11:41:27

Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (1)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (6)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information