Complexity Explorer Santa Fe Institute

Vector and Matrix Algebra

Lead instructor: Anthony D. Rhodes

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2.5 Determinants » Quiz #14

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Question 1

Let

A=\begin{bmatrix} 1 & 0 & 0 \\ 0 & 5 & 0 \\ 0 & 0 & 9 \end{bmatrix}

  Find det(A). 

Question 2

Let

B=\begin{bmatrix} -1 & 2 \\ 4 & -4 \end{bmatrix}

C=\begin{bmatrix} 0 & 3 \\ 1 & -4 \end{bmatrix}

 Find det (BC).