00:01
In this question, matrix a elements are given 3 2 4 6 7 2 4 1 5 8 9 0 and order of this matrix, order of matrix a is 3 by 4, 3 rows and 4 columns.
00:25
So, these are 1 2 3 rows and 1 2 3 4 columns.
00:30
Now, rank of matrix a, so rank of a will be less equals to minimum of 3 comma 4.
00:40
So, this implies rank of a will be less equals to 3.
00:47
Now, this is equation number 1, because in 3 and 4, 3 is a minimum.
00:52
So, let matrix b is 3 2 4 and 6 7 2 4 1 5 be a sub matrix, it is a sub matrix of a.
01:12
So, this implies determinant of matrix b is given by 3 times of leaving this column and this row.
01:22
So, 7 5 the 35 minus 2 and minus 6 here leaving this column and this row...