Finding the Determinant of a Matrix Test

Question 1 of 5: Find the determinant of A:

$$A=\left[ \begin{array}{cc}3 & 4\\ 7 & 0\end{array}\right]$$

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$$24$$

$$-28$$

$$0$$

$$-13$$

$$-5$$

Question 2 of 5: Find the determinant of A:

$$A=\left[ \begin{array}{cc}5 & 0\\ 1 & -3\end{array}\right]$$

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$$-2$$

$$0$$

$$-15$$

$$21$$

$$-110$$

Question 3 of 5: Answer the given question:

$$A=\left[ \begin{array}{ccc}4 & 0 & 2\\ -3 & 2 & 1 \\ 1 & -1 & 0\end{array}\right]$$ Let C represent the Cofactor Matrix of A
Find C_1,2

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$$0$$

$$-3$$

$$1$$

$$-1$$

$$6$$

Question 4 of 5: Find the determinant of A:

$$A=\left[ \begin{array}{ccc}6 & 0 & 0\\ 4 & 1 & -1 \\ -3 & 1 & 7\end{array}\right]$$

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$$-22$$

$$48$$

$$-55$$

$$0$$

$$-121$$

Question 5 of 5: Find the determinant of A:

$$A=\left[ \begin{array}{ccc}3 & 0 & 9\\ -1 & 0 & 5 \\ 7 & 6 & -2\end{array}\right]$$

Finish »

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$$13$$

$$144$$

$$-216$$

$$216$$

$$-144$$

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