Given a generic 2x2 matrix A, and a second 2x2 matrix C, show the following: a. If you exchange two rows of A to produce matrix B, then det(A) = -det(B). b. det A" = det A c. JAC|= |A||C| d. Using property c above, show that det Ak = (det A)k for some natural number k. Show that detrA = r² det A, for some scalar r. е.

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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Given a generic 2x2 matrix A, and a second 2x2 matrix C, show the following:
a. If you exchange two rows of A to produce matrix B, then det(A) = -det(B).
b. det A" = det A
c. |AC| = |A||C|
d. Using property c above, show that det Ak = (det A)k for some natural number k.
Show that detrA = r² det A, for some scalar r.
е.
Transcribed Image Text:Given a generic 2x2 matrix A, and a second 2x2 matrix C, show the following: a. If you exchange two rows of A to produce matrix B, then det(A) = -det(B). b. det A" = det A c. |AC| = |A||C| d. Using property c above, show that det Ak = (det A)k for some natural number k. Show that detrA = r² det A, for some scalar r. е.
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