matrix

3. a11=2,a12=1,a21=3,a22=4 what is the minor of a11?
4. An arrangement of numbers into rows and columns
7. A number determining the properties of a matrix
8. what is the dimension of the vector space generated (or spanned) by its columns?
10. foundational matrix for operations
12. what is a matrix with the same number of rows and columns?
13. A matrix that is both upper and lower triangular is called
15. row the row to which a multiply of a pivot row is called
17. Swapping rows and columns of a matrix
18. a11=1,a12=2,a13=3,a21=0,a22=2,a23=1,a31=-4,a32=1,a33=0 What is the determinant of matrix?

1. (-1)^i+j * M how called this formula?
2. what is a matrix formed by combining the columns of two form a new matrix?
5. what is a quantity or phenomenon that two independent properties; magnitude and direction?
6. method for solving linear systems
9. x1-x2=2,x2=3, x1=?
11. A(3;x),B(2;7) and C(-1;4),D(2;7) if AB||BA x=?
14. Another matrix, which by multiplying with the given matrix gives the identity matrix
16. which system is follow a stair-step pattern and has leading coefficients of 1?