Let X = {−1,0,1} and consider the inner product on F(X) defined as follows: ⟨f, g⟩ = f (−1)g(−1) + 2f (0)g(0) + 4f (1)g(1). Let E be the subspace of all even functions defined on X. Set g(x) = x2 + x for every x ∈ X. Find the orthogonal projection of g onto E.

Elementary Linear Algebra (MindTap Course List)
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Chapter5: Inner Product Spaces
Section5.CR: Review Exercises
Problem 54CR: Let V be an two dimensional subspace of R4 spanned by (0,1,0,1) and (0,2,0,0). Write the vector...
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Let X = {−1,0,1} and consider the inner product on F(X) defined as follows:

⟨f, g⟩ = f (−1)g(−1) + 2f (0)g(0) + 4f (1)g(1).

Let E be the subspace of all even functions defined on X. Set g(x) = x2 + x for every x ∈ X.

Find the orthogonal projection of g onto E.

 

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