Matric
Inverse Matrix
Only for square matrix
Unique
Denoted as A
Determinant = 0
Elementary Row Operation
Interchange any 2 rows
Multiply any row =0
Add k times to another row
Determinant
det A=|A|
sum of |A|
Finding Determinant
Diagonal Method
2x2
3x3
Matric Algebra
Addition
Subtraction
Multiplication
Scalar
Matrices
Properties of Matrix Algebra
Transpose Matrix
(AB)= B A
Zero Matrix
A + 0 = A
A0=0A=0
Inverse Matrix
AI=IA=A