6. Find the dot product of the vectors and the cosine of the angle between them. (a) u=i+2j, v = 6i – 8j (b) u=(-7,-3), v= (0,1) (c) u=i-3j+7k, v=8i– 2j-2k

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 6E
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multivariable calculus

6. Find the dot product of the vectors and the cosine of the angle between them.
(a) u =i+2j, v=6i – 8j
(b) u=(-7,-3), v=(0,1)
(c) u=i-3j+7k, v=8i– 2j-2k
Transcribed Image Text:6. Find the dot product of the vectors and the cosine of the angle between them. (a) u =i+2j, v=6i – 8j (b) u=(-7,-3), v=(0,1) (c) u=i-3j+7k, v=8i– 2j-2k
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