Need to know the inverse for the matrix (plz teach me the method also not the answer)
-5 -2 -2
2 1 0
1 0 1
it is 3x3 matrix
Read this: tutOR: Matrix Inverse
Why do you need to know? If it's for an assignment or test, you must already have been taught how to do it ....?
When you learn about the determinant you will get a method for testing whether the inverse of a given matrix exists. I have already given the general apporach for finding the inverse of a matrix. You can use moo's for a 3x3, if the order is higher you're stuck with with what I've already told you.
It sounds like it might be better if you wait until you've been taught more regarding this subject.