Evaluate the determinant. |24-5-1| - Mathematics

Question

Evaluate the determinant.

$| \begin{matrix} 2 & 4 \\ - 5 & - 1 \end{matrix} |$

Sum

Solution

$| \begin{matrix} 2 & 4 \\ - 5 & - 1 \end{matrix} |$

= 2(−1) − 4(−5)

= − 2 + 20

= 18

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Introduction of Determinant

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Chapter 4: Determinants - Exercise 4.1 [Page 108]

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Exercise 4.1 | Q 1 | Page 108

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Evaluate the determinant. |24-5-1| - Mathematics

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