Determinant From Triangular Form Test

Question 1 of 5: Find the determinant:

$$\left| \begin{array}{cccc}2 & 0 & -1 & 3\\ 0 & 6 & 4 & 0 \\ 1 & 2 & 3 & 0 \\4 & 0 & 9 & 1\end{array}\right|$$

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$$0$$

$$-48$$

$$113$$

$$-14$$

$$68$$

Question 2 of 5: Find the determinant:

$$\left| \begin{array}{cccc}3 & -1 & 2 & 7\\ 3 & 1 & 3 & 5 \\ -6 & 2 & 3 & -9 \\15 & -5 & 10 & 34\end{array}\right|$$

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$$-212$$

$$-42$$

$$55$$

$$0$$

$$13$$

Question 3 of 5: Find the determinant:

$$\left| \begin{array}{cccc}-5 & 1 & 7 & 0\\ 0 & -3 & 2 & 4 \\ 1 & 1 & 5 & 3 \\0 & 0 & 0 & -1\end{array}\right|$$

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$$0$$

$$55$$

$$203$$

$$-108$$

$$-2$$

Question 4 of 5: Find the determinant:

$$\left| \begin{array}{cccc}3 & 0 & 0 & -1\\ 4 & 9 & 0 & 10 \\ 5 & -4 & 1 & -3 \\5 & 7 & -2 & 0\end{array}\right|$$

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$$7$$

$$3$$

$$501$$

$$-1$$

$$-26$$

Question 5 of 5: Find the determinant:

$$\left| \begin{array}{cccc}1 & -2 & 1 & 9\\ 5 & 2 & 3 & -5 \\ -2 & 4 & -2 & -18 \\3 & 8 & 1 & 0\end{array}\right|$$

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$$-1$$

$$2$$

$$-5$$

$$0$$

$$-22$$

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