Date: name: math 270: linear algebra page 2 of 2 cw 21: matrix operations 1 m270q021a in problem 22, consider the matrices p and pq. -f 4 -31 pg -5 pm 12 3 0 find q. show your calculations. a. in problem 23, let a, b, and c be arbitrary matrices for which the sums and products are defined. mark each statement as true or false. ab +ac a(b +c) a. at+ bt (a +b)t b. (ab)t = btat c. d. if the columns of b are linearly dependent, then the columns of ab are linearly dependent.