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Mathematics
Mathematics
Problem
Which one of the following
2
×
2
2\times2
2
×
2
matrices is singular? a)
(
2
3
−
2
3
)
\begin{pmatrix}2 & 3\\-2 & 3\end{pmatrix}
(
2
−
2
3
3
)
b)
(
2
1
−
3
−
2
)
\begin{pmatrix}2 & 1\\-3 & -2\end{pmatrix}
(
2
−
3
1
−
2
)
c)
(
3
6
1
2
)
\begin{pmatrix}3 & 6\\1 & 2\end{pmatrix}
(
3
1
6
2
)
d)
(
2
3
1
6
)
\begin{pmatrix}2 & 3\\1 & 6\end{pmatrix}
(
2
1
3
6
)
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