a Q.8. Let the set H = :a² +b >1 b Is set H a vector space? Justify your answer.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 46E
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Question
a
Q.8. Let the set H =-
: a² +b? >1}. Is set H a vector space? Justify your answer.
Q.9. Let the set H =
:ab<1
(a) Is set H a vector space? Justify your answer.
(b) Is the set H close with respect to scalar multiplication? Justify your answer
q
Q.10. Determine if the set H of all matrices of the form
is a subspace of M2. Here, p, q and
2x2
r
r represent arbitrary real numbers.
Q.11. Let H be the set of all vectors of the form shown below. Is H a subspace of R*? Justify your
answer for each case. Here, p,q,r and s represent arbitrary real numbers.
p+q-s
[2p-s|
p-r
(a)
2р+39
р-2
(b)
p+3q
r+3q
|1 2 3 4
5
[1
Q.12. Let A =0 1 2 3 -1
u =
and v =|0
2 0 12 -2
(a) Determine if u e NulA. Could u e ColA? Justify.
(b) Determine if ve CollA. Could v e NulA? Justify.
Transcribed Image Text:a Q.8. Let the set H =- : a² +b? >1}. Is set H a vector space? Justify your answer. Q.9. Let the set H = :ab<1 (a) Is set H a vector space? Justify your answer. (b) Is the set H close with respect to scalar multiplication? Justify your answer q Q.10. Determine if the set H of all matrices of the form is a subspace of M2. Here, p, q and 2x2 r r represent arbitrary real numbers. Q.11. Let H be the set of all vectors of the form shown below. Is H a subspace of R*? Justify your answer for each case. Here, p,q,r and s represent arbitrary real numbers. p+q-s [2p-s| p-r (a) 2р+39 р-2 (b) p+3q r+3q |1 2 3 4 5 [1 Q.12. Let A =0 1 2 3 -1 u = and v =|0 2 0 12 -2 (a) Determine if u e NulA. Could u e ColA? Justify. (b) Determine if ve CollA. Could v e NulA? Justify.
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