More fun with Matrices

[TonyC]

Just as I thought I was getting the hang of Matrices:

How do I find the minor M31 of the this Matrix?


1.....6.....-2
-7....-8.....3
-4....-9.....5

I thought I had matrices licked but! :shock:

 

[stapel]

Go the 3,1 entry of the matrix.

Cross out the row and column containing that entry.

Find the determinant of the remaining entries.

Eliz.

 

[TonyC]

Thank YOU!