Video for 2x2 determinant: • How to find the Determ...
In matrices, determinants are the special numbers calculated from the square matrix. The determinant of a 3 x 3 matrix is calculated for a matrix having 3 rows and 3 columns. The symbol used to represent the determinant is represented by vertical lines on either side, such as | |. The most popular application is to find area of triangle using determinant, where the three vertices of the triangle are considered as the coordinates in an XY plane.
Let A be the matrix, then the determinant of a matrix A is denoted by |A|. To find any matrix such as determinant of 2×2 matrix, determinant of 3×3 matrix, or n x n matrix, the matrix should be a square matrix. It means that the matrix should have an equal number of rows and columns. Finding determinants of a matrix are helpful in solving the inverse of a matrix, a system of linear equations, and so on.
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