Determinant of a 3x3 matrix shortcut method (

Determinant of a 3x3 matrix shortcut method (‎‪@Integralganit‬ )
your queries:-
👉The determinant of a square matrix is a value that can be computed from the matrix and is used in linear equation systems.
👉The general method of finding determinants is the formal method, following all the rules and producing some minor matrix determinant calculations along the way to find the final solution.
👉The shortcut method is a clever trick to simplify the calculation
but it still requires attention to detail regarding numbers
multiplication order
and element rearrangement.
👉For a 3x3 matrix
the shortcut method involves rewriting the matrix with its two first columns repeated to the right side.
The determinant value will be the result of the subtraction between the addition of products from all of the down-rightward multiplications and the down-leftward multiplications.
👉The method is applicable for larger matrices than 3x3
with the same logic and rearrangement but increasing the number of elements to work with.
👉There is no shortcut method for finding the determinant of an "n x n" matrix other than reducing the matrix to row echelon form and then multiplying the diagonal elements
considering sign changes and row scale factors.
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The determinant of a 3x3
matrix shortcut method
The 3x3 matrix determinant trick
The shortcut method
The general method of a 3 by 3 matrix
The formula for determinants
larger than 3x3
The shortcut method for
larger matrices than a 3x3
The 3x3 matrix determinant trick, known as the shortcut method