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Exercise 2

Avg difficulty 3.0

Evaluate the determinant of each.

  • (a)  (20−13)\begin{pmatrix}2&0\\ -1&3\end{pmatrix}     (b)  (21105−21−34)\begin{pmatrix}2&1&1\\ 0&5&-2\\ 1&-3&4\end{pmatrix}     (c)  (234567891)\begin{pmatrix}2&3&4\\ 5&6&7\\ 8&9&1\end{pmatrix}

Hefferon, Linear Algebra, Determinants, Exploration, Exercise 2

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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.