--[i 1. (a) Let A = 1-3 Find all 2×2 matrices B which satisfy the relation AB = BA.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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1. (a) Let A
-[i-13]. Find all 2x2 matrices B which satisfy the relation AB = BA.
(b) Use row reduction and back-substitution to solve the following system of equa-
tions:
2x+y+z = 1
x + 2y + z = 2
2x + z
3
(c) Find all conditions on a and b for which det
(d) Find the inverse of the matrix A
a 0
2
a
a-1
1 1
1 1
01-2
0
1
{].
a²
3a
ab+b
= 0.
=
Transcribed Image Text:1. (a) Let A -[i-13]. Find all 2x2 matrices B which satisfy the relation AB = BA. (b) Use row reduction and back-substitution to solve the following system of equa- tions: 2x+y+z = 1 x + 2y + z = 2 2x + z 3 (c) Find all conditions on a and b for which det (d) Find the inverse of the matrix A a 0 2 a a-1 1 1 1 1 01-2 0 1 {]. a² 3a ab+b = 0. =
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