1 0 1 1 2 2 -1 1 3. Let A = 2 1 3 0 1 1 0 1 (a) Compute the determinant of A. (b) If possible, compute also the determinants of A- and AA-. (c) Give a general formula for the computation of the determinant of an n xn matrix.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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1 0
1 1
2 2 -1 1
2 1 3 0
1 1
3. Let A =
0 1
(a) Compute the determinant of A.
(b) If possible, compute also the determinants of A- and AA-1.
(c) Give a general formula for the computation of the determinant of an n xn matrix.
(d) Suppose U, V are invertible 4 x 4 matrices with det(U) = 5 and det(V) = 18.
Compute det(U-1AV*).
Transcribed Image Text:1 0 1 1 2 2 -1 1 2 1 3 0 1 1 3. Let A = 0 1 (a) Compute the determinant of A. (b) If possible, compute also the determinants of A- and AA-1. (c) Give a general formula for the computation of the determinant of an n xn matrix. (d) Suppose U, V are invertible 4 x 4 matrices with det(U) = 5 and det(V) = 18. Compute det(U-1AV*).
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