Find the values of x such that the angle between the vectors u = (2, 1, -1) and v = (1, x, 0) is 45°.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.1: Rectangular Coordinate Systems
Problem 22E
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1.
Find the values of x such that the angle between the vectors u =
(2, 1, –1) and v =
(1, x, 0) is 45°.
Transcribed Image Text:1. Find the values of x such that the angle between the vectors u = (2, 1, –1) and v = (1, x, 0) is 45°.
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