“The people who are crazy enough to think they can change the world, are the ones who do.” – **Steve Jobs**

**Lecture 6 Chapter 4 Determinants Class 12**

00:00:05 Proof of finding determinants using cofactors

00:04:58 NCERT Solutions Exercise 4.4 Question 4

00:11:55 NCERT Solutions Exercise 4.4 Question 5

Adjoint of a matrix

00:13:25 NCERT Solutions Exercise 4.5 Question 1 Question 2

00:17:35 Proof of A.adj(A) = adj(A).A = |A|I

00:21:35 NCERT Solutions Exercise 4.5 Question 3

00:24:35 NCERT Solutions Exercise 4.5 Question 4