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Sagot :
Answer:
No ... A* B=
-1 20
0 -1
which is not
is not 1 0
0 1
Step-by-step explanation:
10 1 0 1
-1 0 -1 10
-1 20
0 -1
Answer:
Hello,
the matrices are not inverses
Step-by-step explanation:
[tex]\begin{bmatrix}10&1\\-1&10\end{bmatrix}*\begin{bmatrix}0&1\\-1&10\end{bmatrix}\\\\\\=\begin{bmatrix}10*0+1*1&10*1+1*10\\-1*0+0*(-1)&-1*1+0*10\end{bmatrix}\\\\\\=\begin{bmatrix}1&20\\0&-1\end{bmatrix}\neq \begin{bmatrix}1&0\\0&1\end{bmatrix}\\[/tex]
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