Prove that if A and B are similar, then |A| |B|. Is the converse true? Illustrate the results using the matrices %3D [10 0 A =|0 3 0 [oo -2 -1 1 1] -2 1 1, -2 1 2 5 -2 -2 1 -1 B = -6 4 P = 2 0 -1 10 -5 -7 0 -1 where B = P-'AP. STEP 1: First note that A and B are similar. 1 -1 -- 1 0 0 3 -1 1 1 p-lAP = 2 0 -1 -2 1 1 0 -1 0 0 -2 -2 1 2 - E 1 -1 2 0 -1 0 -1 STEP 2: Take the determinant of B by expanding along the first row. |B| = 5 -6 + 2 6| 10 -7 + 2(-18) – 2
Prove that if A and B are similar, then |A| |B|. Is the converse true? Illustrate the results using the matrices %3D [10 0 A =|0 3 0 [oo -2 -1 1 1] -2 1 1, -2 1 2 5 -2 -2 1 -1 B = -6 4 P = 2 0 -1 10 -5 -7 0 -1 where B = P-'AP. STEP 1: First note that A and B are similar. 1 -1 -- 1 0 0 3 -1 1 1 p-lAP = 2 0 -1 -2 1 1 0 -1 0 0 -2 -2 1 2 - E 1 -1 2 0 -1 0 -1 STEP 2: Take the determinant of B by expanding along the first row. |B| = 5 -6 + 2 6| 10 -7 + 2(-18) – 2
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.3: Matrix Algebra
Problem 79E
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