Question: 11. If $$begin{aligned} B &= begin{bmatrix} 6 & 6 & 6 & 6 & 6 6 & 8 & 8 & 8 & 8

11. If

$$\begin{aligned}

B &= \begin{bmatrix} 6 & 6 & 6 & 6 & 6 \\ 6 & 8 & 8 & 8 & 8 \\ 6 & 8 & 3 & 3 & 3 \\ 6 & 8 & 3 & 2 & 2 \\ 6 & 8 & 3 & 2 & 4 \end{bmatrix},

\end{aligned}$$

find B⁻¹.

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