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We have covered the chapter-Determinants of class 12th NCERT in this lecture in just 30 minutes.

0:00 Introduction
1:16 Points to remember
1:57 Square Matrix
13:02 Minors and Cofactors
17:37 Evaluation of determinants using cofactors
21:07 Properties of adjoint matrix
23:22 Trick to find adjoint of matrix
24:42 Inverse of matrix
28:02 System of linear equations
30:07 Consistency
34:27 Thank You

Minor of an element in a matrix is defined as the determinant obtained by deleting the row and column in which that element lies.
The inverse of matrix is another matrix, which on multiplication with the given matrix gives the multiplicative identity.

There are many other similar lectures in upcoming videos for class 12. Stay tuned with NCERT Wallah.

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