is a subspace of R². S={(x,y)|ax+by = 0, a, b real numbers}

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter5: Inner Product Spaces
Section5.CR: Review Exercises
Problem 42CR: Repeat Exercise 41 for B={(1,2,2),(1,0,0)} and x=(3,4,4). Let B={(0,2,2),(1,0,2)} be a basis for a...
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9. Show that
S = {(x,y)|ax+by = 0, a, b real numbers}
is a subspace of R².
10. Let u₁= (3, -4,5) and u₂ = (-3, 14,-7).
(a) Show that {u₁, u₂} forms a linearly independent set.
(b) Construct an orthonormal basis {w₁, W2} for the subspace span{u₁, u₂} of R³.
(c) Write u = (3, 6, 3) span{w₁, W2} as a linear combination of the orthonormal basis
vectors found in (b). (Hint: Similar to the ideas in Theorem 7.7.1).
Transcribed Image Text:9. Show that S = {(x,y)|ax+by = 0, a, b real numbers} is a subspace of R². 10. Let u₁= (3, -4,5) and u₂ = (-3, 14,-7). (a) Show that {u₁, u₂} forms a linearly independent set. (b) Construct an orthonormal basis {w₁, W2} for the subspace span{u₁, u₂} of R³. (c) Write u = (3, 6, 3) span{w₁, W2} as a linear combination of the orthonormal basis vectors found in (b). (Hint: Similar to the ideas in Theorem 7.7.1).
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