Determine whether A+B is defined. If it is defined, express the result as a single matrix; if it is not, say "not defined." A= 03-1 11 6 91 0 B= -12-3 Determine whether 2A-6B is defined. If it is defined, express the result as a single matrix, if it is not, say "not defined." 05-3 21 0 A= B= 15 5 -6 4-3 Determine whether BC is defined. If it is defined, express the result as a single matrix; if it is not, say "not defined." 1 1 054 2.1 0 A= B= C= 26 13 3 -26-1 -26 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. The expression BC is defined. BC= OB. The expression BC is not defined. Determine whether C(A-B) is defined. If it is defined, express the result as a single matrix; if it is not, say "not defined." A= 06-1 13 4 1 1 1 0 -67-2 C= 32 -45 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. The expression C(A-B) is defined. C(A-B)= OB. The expression C(A-B) is not defined. ***** Find the inverse of the given nonsingular matrix. 8 15 2 4 8 15 The inverse of the matrix is 2 4 (Type an integer or simplified fraction for each matrix element.) Find the inverse of the given nonsingular matrix. 1-1 1 0-2 1 7 60 1-11 The inverse of the matrix 0-21 is 7 60 (Type an integer or simplified fraction for each matrix element.) Use the given inverse to solve the system of equations. 4x+y=-19 x+y= -7 x= y= 13 The inverse of 1 4 3 Use the given inverse to solve the system of equations. 7x+y=24 x+y= 0 x= The inverse of 11 y= 5 -6 98 7 16 6 6