7. What basis for V = M(n, R) does Theorem 3.3 i) yield when applied to T(A) = A + AT, with W M(n, R), when using the standard basis {eje + eje}

Algebra & Trigonometry with Analytic Geometry
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ISBN:9781133382119
Author:Swokowski
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Chapter3: Functions And Graphs
Section3.3: Lines
Problem 21E
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7. What basis for V = M(n, R) does Theorem 3.3 i)
yield when applied to T(A) = A + AT, with W
M(n, R), when using the standard basis
{eje + ejef}i<i<i<n U{eie?}i=1...n
for symmetric matrices (Hint: This too is in the notes).
Explain your answer.
Transcribed Image Text:7. What basis for V = M(n, R) does Theorem 3.3 i) yield when applied to T(A) = A + AT, with W M(n, R), when using the standard basis {eje + ejef}i<i<i<n U{eie?}i=1...n for symmetric matrices (Hint: This too is in the notes). Explain your answer.
Th 3.3 i): Let T V W be linear with r =
rank (T). Let {w₁,..., w,} be a basis for Rg(T). Let
0; for i = 1,..., r be any choice of elements of V satis-
fying T(v₁) = w₁, Vi = 1, ..., r. Let v = nullity (T)
and let {₁,..., vy} be a basis for Ker(T). Then
{V₁, ..., Ur, U1, ..., U is a basis for V.
Transcribed Image Text:Th 3.3 i): Let T V W be linear with r = rank (T). Let {w₁,..., w,} be a basis for Rg(T). Let 0; for i = 1,..., r be any choice of elements of V satis- fying T(v₁) = w₁, Vi = 1, ..., r. Let v = nullity (T) and let {₁,..., vy} be a basis for Ker(T). Then {V₁, ..., Ur, U1, ..., U is a basis for V.
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