Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Let
A
=
(
1
2
2
4
)
.
A=\begin{pmatrix}1&2\\2&4\end{pmatrix}.
A
=
(
1
2
2
4
)
.
Find any non-zero
2
×
2
2\times 2
2
×
2
matrix
B
B
B
such that
A
B
=
O
2
×
2
AB=O_{2\times 2}
A
B
=
O
2
×
2
.
Browse the problem library