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Determinant/Laplace-matrix/Complete graph/Exercise
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We consider the
matrix
(
2
−
1
−
1
−
1
2
−
1
−
1
−
1
2
)
.
{\displaystyle {\begin{pmatrix}2&-1&-1\\-1&2&-1\\-1&-1&2\end{pmatrix}}.}
Compute the
determinant
of
M
{\displaystyle {}M}
.
Determine the determinant for every matrix which arise, when we remove from
M
{\displaystyle {}M}
a row and a column.
Create a solution