Determinant of a 2x2 Matrix
What is a determinant?
- The determinant is a numerical value (positive or negative) calculated from the elements in a matrix and is used to find the inverse of a matrix
- You can only find the determinant of a square matrix
- The method for finding the determinant of a matrix is given by:
Worked example
Consider the matrix , where is a constant. Given that , find the value of .