Finding the Shortest Distance between Skew Lines

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Homework Help Overview

The discussion revolves around finding the shortest distance between two skew lines in three-dimensional space. Participants explore various mathematical approaches and concepts related to vector operations, particularly the cross product and projections, to determine this distance.

Discussion Character

  • Exploratory, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants discuss the use of vectors and the cross product to find distances, questioning whether the distance calculated from arbitrary points on the lines represents the shortest distance. Some suggest that the vector must be perpendicular to both lines to achieve this.

Discussion Status

The conversation is ongoing, with various interpretations and methods being explored. Some participants have offered insights into the geometric relationships between the lines and the planes they define, while others are seeking clarification on the definitions and assumptions being used.

Contextual Notes

There are mentions of specific vector forms and parameters for the lines, as well as references to textbook examples that may not be fully understood by all participants. The discussion includes concerns about the implications of using arbitrary points and the relevance of vector lengths in the context of finding the shortest distance.

  • #31
ok so it seems to be consistent so there is only one lunit vectorl which is perpendicular to both lines and therefore the shortest distance must be in this direction i believe that this can be understood by taking all vectors to the origin and then raising one direction vector away from the other you will see that the shortest distance is along the cross product vector in a way its raising the point of intersection and then meaduring the distance
 
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