posted by lizzie on .
Can you tell me if these are correct? I am not sure that I understand this.
1. Which is the solution for the determinant?
2.Which is the solution for the determinant?
Did I answer these correct?
19.Given matrices A, B, and C are all 2x2, determine whether the equation is true for the given matrices.
C(A+B)= CA + CB
20.Matrix multiplication is not commutative.
21.For matrices, A + B = B + A