Linear Algebra Question - Two Planes

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Homework Help Overview

The discussion revolves around the intersection of two planes in linear algebra, specifically questioning the nature of their solutions and geometric representation.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the possibility of two planes having a single solution and discuss the implications of geometric representations, particularly the concept of 'edges' in relation to unbounded planes.

Discussion Status

Participants are engaged in clarifying their understanding of the properties of planes and their intersections. There is an acknowledgment of the challenges in visualizing planes without edges, and some guidance is offered regarding the nature of geometric representations.

Contextual Notes

There is a mention of diagrams that may mislead perceptions of planes having edges, which raises questions about the assumptions underlying their geometric interpretations.

carlodelmundo
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Homework Statement



http://carlodm.com/images/math1.png

My question is:

Isn't it possible for two planes to have one solution? Geometrically, what if their edges were touching and that was the extent of their intersection?
 
Last edited by a moderator:
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carlodelmundo said:

Homework Statement



http://carlodm.com/images/math1.png

My question is:

Isn't it possible for two planes to have one solution? Geometrically, what if their edges were touching and that was the extent of their intersection?

What's the 'edge' of a plane? I thought planes were unbounded and didn't have 'edges'?
 
Last edited by a moderator:
Oh. Right. I forgot that went infinite. The darn diagrams make it look like they have edges!
 
carlodelmundo said:
Oh. Right. I forgot that went infinite. The darn diagrams make it look like they have edges!

Tough to draw a picture of a plane without edges. Try to sympathise with the illustrators and forgive their lapses.
 

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