Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
If
A
=
[
1
0
−
1
7
]
A = \begin{bmatrix} 1 & 0 \\ -1 & 7 \end{bmatrix}
A
=
[
1
−
1
0
7
]
, find
k
k
k
so that
A
2
=
8
A
+
k
I
A^2 = 8A + kI
A
2
=
8
A
+
k
I
.
Browse the problem library