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Mathematics
Mathematics
Problem
Which one of the following
2
×
2
2\times 2
2
×
2
matrices is singular? a)
(
2
1
3
6
)
\begin{pmatrix}2 & 1\\ 3 & 6\end{pmatrix}
(
2
3
1
6
)
b)
(
1
2
3
6
)
\begin{pmatrix}1 & 2\\ 3 & 6\end{pmatrix}
(
1
3
2
6
)
c)
(
0
2
−
3
0
)
\begin{pmatrix}0 & 2\\ -3 & 0\end{pmatrix}
(
0
−
3
2
0
)
d)
(
1
2
2
3
)
\begin{pmatrix}1 & 2\\ 2 & 3\end{pmatrix}
(
1
2
2
3
)
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