The direction angles of a nonzero vector a = (a1,a2,a3) are the angles a,ß, and y. a) Show that cos a² + cos ß² + cos y² = 1 b) If a vector has direction angles a =", and B =, find the third direction angle y.

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 17E: Consider the vector v=(1,3,0,4). Find u such that a u has the same direction as v and one-half of...
icon
Related questions
Question
100%

I am struggling to answer this review question, any help or guidance would be appreciated :)

The direction angles of a nonzero vector a = (a1,a2,a3) are the angles a,ß, and y.
a) Show that
cos a² + cos ß² + cos y² = 1
b) If a vector has direction angles a =", and B =, find the third direction angle y.
Transcribed Image Text:The direction angles of a nonzero vector a = (a1,a2,a3) are the angles a,ß, and y. a) Show that cos a² + cos ß² + cos y² = 1 b) If a vector has direction angles a =", and B =, find the third direction angle y.
Expert Solution
steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Recommended textbooks for you
Elementary Linear Algebra (MindTap Course List)
Elementary Linear Algebra (MindTap Course List)
Algebra
ISBN:
9781305658004
Author:
Ron Larson
Publisher:
Cengage Learning
Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning