Find the acute angles between the intersecting lines in Exercises 49and 50.49. x = t, y = 2t, z = -t and x = 1 - t, y = 5 + t, z = 2t50. x = 2 + t, y = 4t + 2, z = 1 + t

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section: Chapter Questions
Problem 39RE
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Find the acute angles between the intersecting lines in Exercises 49
and 50.
49. x = t, y = 2t, z = -t and x = 1 - t, y = 5 + t, z = 2t
50. x = 2 + t, y = 4t + 2, z = 1 + t

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