Finding Inner Product, Length, and Distance In Exercises 17-26, find (a) 〈 u , v 〉 , (b) ‖ u ‖ , (c) ‖ v ‖ , and (d) d ( u , v ) for the given inner product defined on R n . u = ( 0 , 7 , 2 ) , v = ( 9 , − 3 , − 2 ) , 〈 u , v 〉 = u · v
Finding Inner Product, Length, and Distance In Exercises 17-26, find (a) 〈 u , v 〉 , (b) ‖ u ‖ , (c) ‖ v ‖ , and (d) d ( u , v ) for the given inner product defined on R n . u = ( 0 , 7 , 2 ) , v = ( 9 , − 3 , − 2 ) , 〈 u , v 〉 = u · v
Solution Summary: The author explains the value of the inner product langle u,vrangle .
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(a) Let V be R², and the set of all ordered pairs (x, y) of real numbers.
Define an addition by (a, b) + (c,d) = (a + c, 1) for all (a, b) and (c,d) in V.
Define a scalar multiplication by k · (a, b) = (ka, b) for all k E R and (a, b) in V.
.
Verify the following axioms:
(i) k(u + v) = ku + kv
(ii) u + (-u) = 0
Exercise 4 (Proving a fact about Cartesian products). Let X CR² be a cartesian
product of two subsets of R, i.e. there exist C, DCR such that X = C x D.
Prove (rigorously) that if {(-3, 1), (0, -2), (6, 2)} CX, then X contains at least
nine points. Which ones?
Using basis and dimensions in vector space section for linear algebra
Chapter 5 Solutions
Bundle: Elementary Linear Algebra, Loose-leaf Version, 8th + MindTap Math, 1 term (6 months) Printed Access Card
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