2. Let CR where is subspace. Let 2 be spanned by the vectors V₁ = (1, 1, 1, 1), v2 = (1,-1,2, 2), v3 = (1, 2, -3,-4) (a) Find an orthogonal basis for N. (b) Find an orthonormal basis for .

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
Section: Chapter Questions
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2. Let CR4 where is subspace. Let be spanned by the vectors
V₁ = (1, 1, 1, 1), v2 = (1, -1, 2, 2), v3 = (1, 2, -3,-4)
(a) Find an orthogonal basis for N.
(b) Find an orthonormal basis for .
3. Let V = P₂[t] be the space of polynomials in t of degree ≤ 2. Let 01, 02, 03 be the linear
functionals on V defined by
1
$1(f(t)) = ["* f(t) dt, $2(f(t)) = f′(1), 43(f(t)) = ƒ(0)
where f(t) = ao + a₁t+ a₂t² € P₂[t] and f' denotes the derivative of f. Find a basis {f1, f2, f3}
of P2[t] that is dual to {01, 02, 03}.
4. Let V be the vector space of square n x n matrices over R. Let Tr: V→ R; A Tr(A) =
a11 + a22+...+ann be the trace mapping on V. Here A = (aij). Show that Tr is a linear map.
Transcribed Image Text:2. Let CR4 where is subspace. Let be spanned by the vectors V₁ = (1, 1, 1, 1), v2 = (1, -1, 2, 2), v3 = (1, 2, -3,-4) (a) Find an orthogonal basis for N. (b) Find an orthonormal basis for . 3. Let V = P₂[t] be the space of polynomials in t of degree ≤ 2. Let 01, 02, 03 be the linear functionals on V defined by 1 $1(f(t)) = ["* f(t) dt, $2(f(t)) = f′(1), 43(f(t)) = ƒ(0) where f(t) = ao + a₁t+ a₂t² € P₂[t] and f' denotes the derivative of f. Find a basis {f1, f2, f3} of P2[t] that is dual to {01, 02, 03}. 4. Let V be the vector space of square n x n matrices over R. Let Tr: V→ R; A Tr(A) = a11 + a22+...+ann be the trace mapping on V. Here A = (aij). Show that Tr is a linear map.
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