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Matrix help please - Determinant











































Given the matrix

-1 3 3
3 0 4
0 0 -2

find its determinant.
The determinant is

Comments for Matrix help please - Determinant

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Mar 25, 2011
Matrix help please - Determinant
by: Staff


The question:
Given the matrix

-1 3 3
3 0 4
0 0 -2

find its determinant.
The determinant is


The answer:



Matrix A

a b c
d e f
g h i

The determinant of matrix A

Det(A) = a (e i - h f) - d (b i - h c) + g (b f - e c)

Matrix A

-1 3 3
3 0 4
0 0 -2

Det(A) = (-1) * [0*(-2) - 0*4] - 3 * [3*(-2) - 0*3] + 0 * [3*4 - 0*3]

Det(A) = 18

The final answer to your question is: Det(A) = 18



Thanks for writing.


Staff
www.solving-math-problems.com


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