http://www.mathhelpforum.com/math-he...1&d=1209153520

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- Apr 25th 2008, 11:58 AMszpengchaoplz find matrix satisfies these
- Apr 25th 2008, 10:56 PMIsomorphism
- Apr 25th 2008, 11:30 PMMoo
Hello,

$\displaystyle B=\begin{pmatrix} 0 & -1 \\ 1 & 0\end{pmatrix}$ would fit in too :D

For C, you just have to find a matrix whose determinant is 0. (Surprised) - Apr 25th 2008, 11:33 PMMoo
$\displaystyle D=\begin{pmatrix} 0 & -1 \\ 1 & 0\end{pmatrix}$ too :D