Refer to the following matrix. B = 5 -1 4     0 1 4 2 3 1 −1 0 2 Find b13, b31, and b43. b13  =    b31  =    b43  =

Suppose A is a matrix with two rows. The matrix product [2 3]A can be thought of as producing a linear combination of the rows of A. The result is times the first row of A plus times the second row of A. Suppose B is a matrix with 3 rows. What matrix E will subtract 5 times row 2 from row 3 of B when you compute EB? E = 1 What is the inverse of E? E What matrix P will exchange rows 2 and 3 of B when you compute PВ? Р — 00

Multiply the two matrices, T =AB, and enter the number in position t21 of the resulting matrix T. 1 T = A. B 3 Next * Previous 13

Suppose that A is a 3×3 matrix and det (A)=-3. What is det (4A)? Select one: O a. -3/4 O b. -3 О с. -12 O d. -192