5. Let x and y be vectors in R" and let Q be an n x n orthogonal matrix. Show that if z = Qx and w = Qy then the angle between z and w is equal to the angle between x and y.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.8: Determinants
Problem 33E
icon
Related questions
Question
Plz solve it within 20-30 mins with a clear typed explanation I'll give you multiple upvotes.
5. Let x and y be vectors in R" and let Q be an n x n
orthogonal matrix. Show that if
z = Qx
and
w = Qy
then the angle between z and w is equal to the angle
between x and y.
Transcribed Image Text:5. Let x and y be vectors in R" and let Q be an n x n orthogonal matrix. Show that if z = Qx and w = Qy then the angle between z and w is equal to the angle between x and y.
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer