FE MATH | Q63: 2x2 Matrix Determinant Made Easy

Ace this FE linear algebra quickie: compute the determinant of a 2x2 matrix and learn a small formatting tip you’ll actually see on the CBT. Problem: Find the determinant of the given matrix. Method: ad-bc for a 2x2. Solution: 3x4 - 1x2 = 12-2 = 10 Chapters 00:00 Problem statement 00:11 Exam formatting tip 00:26 Determinant method (ad − bc) 00:35 Final answer What you’ll learn Recognize 2x2 determinant structure instantly Apply ad-bc without mistakes Understand how the FE presents matrix problems #feexam #mechanical #linearalgebra #determinant #engineeringmathematics