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\documentclass{article}
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\usepackage{fullpage}
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\usepackage{enumerate}
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\begin{document}
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\begin{center}
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{\bf Quiz 6}
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\end{center}
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Name:
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\begin{enumerate}
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\item
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We say that a square matrix $A$ is skew-symmetric if $A^T=-A$. Let $A$
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be a $n\times n$ skew-symmetric matrix with $n$ odd. Prove that $A$ is
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not invertible
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\vfill
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\item
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Give an example of a $2\times 2$ skew-symmetric matrix that is
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invertible.
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\vfill
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\end{enumerate}
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\end{document}
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