2 -6 -3 -6-3 2 -3 2 -6. The eigenvalues of the real symmetric matrix A are X₁ = 7 and A₂ = −7. Let A An orthonormal basis for the eigenspace for A₁ = 7 is B₁ {u₁} where 111 and an orthonormal basis for the eigenspace for A₂ = -7 is B₂ = {1₂, 13} where 112 Thus, if P= 113 then P is orthogonal and PT AP = D. and D

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Let A
The eigenvalues of the real symmetric matrix A are >₁
=
An orthonormal basis for the eigenspace for X₁ = 7 is B₁
11₁
3
2
-6 -3
-6-3 2
-3 2 -6
112
Thus, if
and an orthonormal basis for the eigenspace for X₂ = -7 is B₂ =
=
= {U₂, U3} where
P
113
7 and A₂ = -7.
then P is orthogonal and PT AP = D.
{u₁} where
and D
Transcribed Image Text:Let A The eigenvalues of the real symmetric matrix A are >₁ = An orthonormal basis for the eigenspace for X₁ = 7 is B₁ 11₁ 3 2 -6 -3 -6-3 2 -3 2 -6 112 Thus, if and an orthonormal basis for the eigenspace for X₂ = -7 is B₂ = = = {U₂, U3} where P 113 7 and A₂ = -7. then P is orthogonal and PT AP = D. {u₁} where and D
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