Describe a unit vector in R^3 with the same direction as <1,0,7>

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 11E
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Describe a unit vector in R^3 with the same direction as <1,0,7>

Expert Solution
Step 1

Consider the given point vector

1,0,7
Step 2

Let the this point vector name is

Calculus homework question answer, Step 2, Image 1
Step 3

Find the magnitude of the given vector

= V12 +02 +72 = v1+49
= 50
Step 4

We divide the vector by its magnitude to get unit vector

1
07
/50 V50 V50
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