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$X$ and $Y$ are two $3$ by $3$ matrices. If
\[
X Y=\left(\begin{array}{rrr}
1 & 3 & -2 \\
-4 & 2 & 5 \\
2 & -8 & -1
\end{array}\right)
\]
then

  1. $X$ has rank $2$
  2. at least one of $X, Y$ is not invertible
  3. $X$ can't be an invertible matrix
  4. $X$ and $Y$ could both be invertible.
  5. None of the above
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