Express the vectors in terms of their lengths anddirections. 2i - 3j + 6k

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 14E
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Express the vectors in terms of their lengths and
directions. 2i - 3j + 6k

Expert Solution
Step 1

The given vector is a=2i-3j+6k.

Compute the length of the vector as follows.

a=22+-32+62=4+9+36=49=7

Thus, the length of the vector is 7.

 

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