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Linear Algebra

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Moderate

Simplifying Large Determinants

LINALG-IW1ZX2

If:

$$A=\begin{pmatrix} 1 & 1 & 0 & 11\\\ 0 & 1 & 0 & 7\\\ 4 &1 &2 &3 \\\ 7 & 1 & 0 &1\end{pmatrix}$$

...then determine $\det(A)$.

A

$68$

B

$-68$

C

$44$

D

$-44$