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Finding the determinant of 2x2 matrices

Q: Find the determinant of these 2x2 matrices.

(a) mat[4 3; -2 9] (b) mat[5 -7; 4 12]

Please see the Word document for a cleaner version of the problem.


Solution Preview

A: For a 2x2 matrix, the formula for the determinant is the following

det{mat[a b; ...

Solution Summary

The student is shown how to find the determinant of a 2x2 matrix. Two examples are provided. Step-by-step solutions are given. Word attachment included.