Let a (6,7, –2) and b = (4, 4, –1) be vectors. Compute the following vectors. A. a + b =( 10 11 -3 B. -8a = ( -48 -56 16 %3D C. a – b =( 2 -1 D. Ja| = sqrt(81) 3.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 17E
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Let a = (6, 7, -2) and b = (4, 4, –1) be vectors. Compute the following
vectors.
A. a + b =( 10
11
-3
B. -8a = ( -48
-56
16
C. a – b =( 2
3
-1
D. Ja| :
sqrt(81)
Transcribed Image Text:Let a = (6, 7, -2) and b = (4, 4, –1) be vectors. Compute the following vectors. A. a + b =( 10 11 -3 B. -8a = ( -48 -56 16 C. a – b =( 2 3 -1 D. Ja| : sqrt(81)
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