pramirez8246 pramirez8246
  • 21-04-2022
  • SAT
contestada

Find the following determinant by hand. det 1 2 2 − 2 1 2 =

Respuesta :

MrRoyal
MrRoyal MrRoyal
  • 28-04-2022

The matrix is a 2 by 2 matrix, and the determinant of the matrix by hand is -3

How to determine the determinant?

The matrix is given as:

1     2

2     1

The determinant of the matrix is calculated using the following product expression

det |A| = 1 * 1 - 2 * 2

Evaluate the product

det |A| = 1 - 4

Evaluate the difference

det |A| = -3

Hence, the determinant of the matrix by hand is -3

Read more about matrix at:

https://brainly.com/question/4505228

Answer Link

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