1. Determinant of the Two Order Matrices
Ex:
Then the determinant of A(det(A)) is:
Example:
Determine the determinant of the matrix below!
Answer:
2. Determinant of the Three Order Matrices
Suppose a foursquare matrix alongside an gild non given is given below:
Then the determinant of the matrix is:
There are many ways that tin flame hold upward used to calculate the determinant of matrices alongside 3 x 3 orders, exactly the close widely used is past times using sarrus rules. With the steps every bit follows:
- Put the commencement in addition to minute columns to the correct of the vertical trouble of the determinant.
- The release of times the elements located on the primary diagonal alongside the production times the elements that are parallel to the primary diagonal inwards the correct direction, therefore subtracted past times the production times the elements lying parallel to the side diagonal.
Consider the system to calculate using the next sarrus rules:
Example:
Determine the determinant of the matrix below!
Answer:
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