The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, whenever these products exist.A is 2 × 1, and B is 1 × 1.
A. AB does not exist; 1 × 2
B. 2 × 1; BA does not exist.
C. 1 × 2; 1 × 1
D. 2 × 2; 1 × 1
Answer: B
Mathematics
You might also like to view...
Graph the linear inequality.x > 4 
A. 
B. 
C. 
D. 
Mathematics
Convert the measure to the one that is underlined and then subtract.9 g - 1869 mg
A. 7.131 mg B. 7.131 g C. -969 g D. 7131 g
Mathematics
Determine whether the function satisfies a Laplace equation.f(x, y) = 
A. Yes B. No
Mathematics
Subtract.1 - 5
A. 4 B. -6 C. 6 D. -4
Mathematics