Gail needs 9 yards of fabric for a quilt. How many different patterns of fabric
1 answer:
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Given:
The matrix is .
To find:
The determinant of given matrix, i.e, .
Solution:
If a matrix is A of order , then the value of the determinant of that matrix is equal to the element of that matrix.
For example: Let A be the matrix of order .
Then,
The given matrix is . So, the determinant of given matrix, i.e,
, is
Therefore, the value of determinant of given matrix is -8.