Matrix

Determinant Calculation Determinant of 2x2 matrix $$A= \begin{bmatrix} a & b \newline c & d \end{bmatrix}$$ $|A| = det(A) = ad -bc$ Determinant of 3x3 matrix, also called expansion of the determinant by first row. Link. $$B= \begin{bmatrix} a & b & c \newline d & e & f \newline g & h & k \end{bmatrix}$$ $|B| = det(B) = a $$\begin{vmatrix} e & f \newline h & k \end{vmatrix}$$ -b $$\begin{vmatrix} d & f \newline g & k \end{vmatrix}$$ +c $$\begin{vmatrix} d & e \newline g & h \end{vmatrix}$$ $……

Read More