Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter5: Inner Product Spaces
Section5.1: Length And Dot Product In R^n
Problem 81E
Question
Transcribed Image Text:21. Find the acute angle between the following two planes.
(1)
2x-2y-z-8-0 and x-8y+4z + 10 = 0
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