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## Homework Statement

## The Attempt at a Solution

I don't really know how to do this, so I hope someone can give some hints or briefly tell me what I should do.

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- Thread starter Xingconan
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- #1

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I don't really know how to do this, so I hope someone can give some hints or briefly tell me what I should do.

- #2

HallsofIvy

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[tex]\left[\begin{array}{cc}a_{11} & a_{12} \\ a_{21} & a_{22}\end{array}\right]\left[\begin{array}{cc}1 & 0 \\ -1 & -1\end{array}\right]= \left[\begin{array}{cc}-1 & 0 \\ 1 & 1 \end{array}\right][/tex]

Multiply them out and get 4 equations relating a

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