Angle Between Planes: Calculating the Angle Between Two 3D Planes

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Homework Help Overview

The discussion revolves around calculating the angle between two planes defined by the equations 2x + y + 3z = 5 and 2x + 3y + z = 7. Participants are comparing their results and exploring the implications of their findings.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the accuracy of their calculated angles and discussing the relationship between the two angles they obtained, noting that they sum to 180 degrees. There is also a consideration of whether one angle is acute and the other obtuse.

Discussion Status

The discussion is ongoing, with participants sharing their findings and questioning the nature of the angles derived from their calculations. Some guidance is being offered regarding the interpretation of the angles, but no consensus has been reached.

Contextual Notes

Participants are operating under the assumption that the angles calculated are related in a specific way, given their sum of 180 degrees, but the implications of this relationship are still being explored.

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find the angle between planes:

2x + y + 3z = 5
2x + 3y + z = 7

could someone double check this for me, I got 135.58 while the book got 44.4

thanks :s
 
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135.6 and 44.4 add up to 180. Interesting, eh?
 
voko said:
135.6 and 44.4 add up to 180. Interesting, eh?

yes I noticed that...
 
is one the obtuse angle between the planes and the other the acute?
 
Yep.
 

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