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Exercise 1

Avg difficulty 3.0

Evaluate the determinant of each.

  • (a)  (31−11)\begin{pmatrix}3&1\\ -1&1\end{pmatrix}     (b)  (201311−101)\begin{pmatrix}2&0&1\\ 3&1&1\\ -1&0&1\end{pmatrix}     (c)  (40100113−1)\begin{pmatrix}4&0&1\\ 0&0&1\\ 1&3&-1\end{pmatrix}

Hefferon, Linear Algebra, Determinants, Exploration, Exercise 1

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Adapted from Linear Algebra © 2016 Jim Hefferon. Licensed under CC BY-SA 3.0 US. Source: Linear Algebra. Imported at revision df2262e.