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src/sectionMISLE.xml
Compute the inverse of $E$, $\inverse{E}$, by forming the $5\times 10$ matrix $\augmented{E}{I_5}$ and rowreducing (<acroref type="theorem" acro="CINM" />). Then use a calculator to compute $\inverse{E}$ directly.
<solution contributor="robertbeezer">The matrix $E$ has no inverse, though we do not yet have a theorem that allows us to reach this conclusion. However, when rowreducing the matrix $\augmented{E}{I_5}$, the first 5 columns will not rowreduce to the $5\times 5$ identity matrix, so we are a t a loss on how we might compute the inverse. When requesting that your calculator compute $\inverse{E}$, it should give some indication that $E$ does not have an inverse.
+<solution contributor="robertbeezer">The matrix $E$ has no inverse, though we do not yet have a theorem that allows us to reach this conclusion. However, when rowreducing the matrix $\augmented{E}{I_5}$, the first 5 columns will not rowreduce to the $5\times 5$ identity matrix, so we are at a loss on how we might compute the inverse. When requesting that your calculator compute $\inverse{E}$, it should give some indication that $E$ does not have an inverse.
changes.txt