![]() Alternatively, you can do EROs on the matrix, keeping track of how each ERO changes the determinant. Before learning about the adjoint of a matrix, we must know what is a matrix first? A matrix (plural matrices) is a rectangular table or array containing numbers, symbols, or expressions organised in rows and columns.Ī matrix is generally represented by a capital letter in a boldface font (e.g., \(A, B, X\)) and the elements of the matrix are represented by lowercase letters with a double subscript (e.g., \(a_ \right]\). You can just use Jacobis Rule as is to obtain.
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