How to Find Determinants of 2×2 and 3×3 Matrices

In this lesson, I explain determinants of matrices and how to calculate determinants for both 2×2 and 3×3 matrices.

You’ll also learn why only square matrices have determinants and how determinants are used in advanced matrix operations.

What you’ll learn

✔️ Meaning of determinant
✔️ Determinant of 2×2 matrix
✔️ Determinant of 3×3 matrix
✔️ Conditions for determinants
✔️ Worked examples

🧠 Key Exam Facts

• Determinants exist only for square matrices.

• For:

​

a
c
​

b
d
​

​
determinant:

ad−bc

Видео How to Find Determinants of 2×2 and 3×3 Matrices канала O_G