The linear transformation is given f: R³ R³: (x,y,z) →ƒ (x,y,z) = (az, by, cx), a,b,c=R. Determine the representation matrix A off in terms of the physical basis of R³ and prove that there exists an orthogonal matrix P=M33(R) such that the matrix P-¹AP is diagonal if and only if a=c.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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2A
The linear transformation is given
ƒ: R³ →R³ : (x,y,z) → ƒ (x,y,z) = (az, by, cx), a,b,c=R.
Determine the representation matrix A of ƒ in terms of the physical basis of R³ and
prove that there exists an orthogonal matrix PEM33(R) such that the matrix P-¹AP is
diagonal if and only if a=c.
Transcribed Image Text:2A The linear transformation is given ƒ: R³ →R³ : (x,y,z) → ƒ (x,y,z) = (az, by, cx), a,b,c=R. Determine the representation matrix A of ƒ in terms of the physical basis of R³ and prove that there exists an orthogonal matrix PEM33(R) such that the matrix P-¹AP is diagonal if and only if a=c.
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