determinant of a matrix 3×3

Here you will learn what is determinant of matrix and formula for how to find the determinant of matrix of different order. Let’s begin – What is Determinant ? If the equations \(a_1x + b_1\) = 0, \(a_2x + b_2\) = 0 are satisfied by the same value of x, then \(a_1b_2 – a_2b_1\) = […]