Find the direction cosines and angles of u and show that cos a + cos B + cos? y = 1. (Round your answers for the angles to four decimal plas u = -4i + 5j + 9k cos a = rad cos B = rad cos y = y = rad

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 2E
icon
Related questions
Question
Find the direction cosines and angles of u and show that cos a + cos ß + cos y = 1. (Round your answers for the angles to four decimal places.)
u = -4i + 5j + 9k
cos a =
rad
rad
cos ß =
rad
cos y =
Transcribed Image Text:Find the direction cosines and angles of u and show that cos a + cos ß + cos y = 1. (Round your answers for the angles to four decimal places.) u = -4i + 5j + 9k cos a = rad rad cos ß = rad cos y =
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning