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Mathematics
Mathematics
Problem
If
A
=
[
3
2
1
1
]
A = \begin{bmatrix} 3 & 2 \\ 1 & 1 \end{bmatrix}
A
=
[
3
1
2
1
]
, then
A
2
+
x
A
+
y
I
=
0
A^2 + xA + yI = 0
A
2
+
x
A
+
y
I
=
0
for
(
x
,
y
)
=
(x, y) =
(
x
,
y
)
=
(a)
(
−
1
,
3
)
(-1, 3)
(
−
1
,
3
)
(b)
(
−
4
,
1
)
(-4, 1)
(
−
4
,
1
)
(c)
(
1
,
3
)
(1, 3)
(
1
,
3
)
(d)
(
4
,
1
)
(4, 1)
(
4
,
1
)
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