Introduction

• Solution of simultaneous linear equations by using matrices
  

• Exercise 3.1

• Exercise 3.2

• Minor and Cofactor f an Element of a Maatrix or its Determinant

• Determinant of a Square Matrix of Order $n\ge 3$n≥3

• Exercise 3.3

• Exercise 3.4

• Homogeneous Linear Equation
• Non-Homogeneous Linear Equations

• Exercise 3.5