Linear Algebra:

2 3 2 9 Let A = [ ] and B = I: :|. What value(s) of k. if any, will make AB = BA? 1 1 3 k Select the correct choice below and, if necessary, ll in the answer box within your choice. 0 A, k = D (Use a comma to separate answers as needed.) 0 B. No value of k will make AB = BA Let A =[ 4 _ 16 :|. Construct a 2 x 2 matrix B such that AB is the zero matrix. Use two different nonzero columns for B. 2 8 B=D \fView vectors in R\" as n x1 matrices For u and v in R", the matrix product uTv is a 1 x1 matrix, called the scalar product, or inner product, of u and v. It is usually written as a single real - T a number without brackets. The matrix product uvT is an n x n matrix, called the outer product of u and v. Let u = 4 and v = b . Compute uTv, vTu, WT, and WT. -5 c