Linear Algebra  Let P be a plane in R3 defined by the equation 3x + 2y − z = 0. (a) Find an orthonormal basis for P. (b) Find the projection of (1, 1, 2) to P. (c) What is P⊥.

Elementary Linear Algebra (MindTap Course List)
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ISBN:9781305658004
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Chapter5: Inner Product Spaces
Section5.3: Orthonormal Bases:gram-schmidt Process
Problem 65E
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Linear Algebra

 Let P be a plane in R3 defined by the equation 3x + 2y − z = 0.

(a) Find an orthonormal basis for P.
(b) Find the projection of (1, 1, 2) to P.
(c) What is P⊥.

(d) Write (1, 1, 2) as s + s' where s ∈ P and s'∈ P⊥.

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