3. Which of the following are always true, and which are not always true? Give reasons for your answers. a. u.v = v.u b. uxv=-(v x u) c. (-u) x v = -(u xv) d. u •u = |u|² e. (uxu) u = 0
3. Which of the following are always true, and which are not always true? Give reasons for your answers. a. u.v = v.u b. uxv=-(v x u) c. (-u) x v = -(u xv) d. u •u = |u|² e. (uxu) u = 0
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.7: Distinguishable Permutations And Combinations
Problem 30E
Related questions
Question
Question (c), (d) and (e)
![3. Which of the following are always true, and which are not always true? Give reasons
for your answers.
a. u.v = v.u
b. uxv=-(v x u)
c. (-u) x v = -(u xv)
d. u •u = |u|²
e. (uxu) u = 0](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F327f8c52-7541-4287-8d26-1c5a5f7797a1%2F122fd277-a5d6-4a44-b5dc-fdc566b84686%2Fdq3en2g_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. Which of the following are always true, and which are not always true? Give reasons
for your answers.
a. u.v = v.u
b. uxv=-(v x u)
c. (-u) x v = -(u xv)
d. u •u = |u|²
e. (uxu) u = 0
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