# A, B, and C, are matrices: A(B+C)=AB+CA Is it always true, sometimes true, or false?

• A, B, and C, are matrices: A(B+C)=AB+CA Is it always true, sometimes true, or false?

ab cd 1 D 1 ad bc d b ca: (3) ... Find singular matrices A and B such that A C B is invertible. ... 29 True or false ...
Positive: 55 %
... for any matrices A, B and C for which the sums and products are defined A (B + C) = AB + BC and (B + C) A = BA + CA. ... Matrices and Matrix Calculations .
Positive: 52 %

### More resources

Inverse of a Matrix. Definition and Examples. Recall that functions f and g are inverses if . f(g(x)) = g(f(x)) = x. ... If A and B are matrices with AB = I n
Positive: 55 %
All Matrix Operations Date_____ Period____ Simplify ... = AB + CA A) Always true B) Sometimes true C) ... Always true B) Sometimes true* C) False-2-
Positive: 50 %
... (B) (b) Tr(cA) = (ca 11 +:::+ca nn) = c(a 11 +:::+a nn) ... (AB) T= BT A Proof — Let the matrices A= (a ij), B= (b ... This results holds true for ...