00:02
The three equations are as followed.
00:06
These are the three equations.
00:09
Now first we will find the matrix d.
00:13
These are based on this sum is based on a grammar rule.
00:20
The d matrix is given by all the coefficient of x, y and z.
00:27
That is 4, 2, minus 1, minus 2, 0, 3, 1, 1.
00:37
2 and 4 this is matrix d we need we also need to find the determinant of matrix t then we met determine of matrix d is equals to 4 0 2 3 4 minus 2 leaving this row this column so minus 2 1 3 4 then minus 1 3 4 then minus 1 1 minus 2 1 0 2 so this is equal to 4 0 minus 6 minus 2 minus 2 minus 8 minus 3 minus 1 and minus 4 0 so this is equal to 24 plus 22 plus this is equal to plus this is equal to plus 4 so determinant of the matrix is equal to 2 now matrix matrix d x is we need to replace the coefficient of x with the d1 that is this units so these are 6 660 and other 2 and other 2 would be same that is 2 0 2 minus 1 3 4 similarly we need to find also find the determinant of this thus 6 0 2 3 4 minus 2 6 17 3 4 minus 1 60 70 17 and 2 2 so this will be 6 times minus 6 minus 2, 24 minus 51 minus 1 12.
03:32
So this is equal to minus 36 then so minus 36 minus 26 minus 2 times it is a minus 2 times the 50 for 20 minus 25 that is minus 20 so this is equal to minus 36 plus 54 minus 12 and this is equals to 6...
