Consider the matrices 10 1 1 3 2 0 43 1 2 1 2 1 1 B11 2C0 2D

Consider the matrices: 10 -1 1 3 -2 0 4-3 1 2 1 2 1 -1 B=1-1 2|C=|0 2|D=1-2 0 0 3 -2 1 2 -4 8 9 1 3 -2 6 = 3, =-2.

Solution

They have given us so many matrices, and there is written that matrix is of 3x3, So, My suggestion is that you should go those matrices which has the order of 3x3 in given matrices, if you see that there are two matrices. So, once try to apply all the operations with both of them and see what you will get.

If you will not get your answer by the above method.

You should take the matrix which will have determinant 10.