Of the products AB, BA, A 2 and B 2 , which ones are possible for the given matrices?
a. A 2 only
b. BA only
c. AB only
d. AB and BA only
d. AB and BA only
For the matrices 
the possible products are AB and BA only.
You might also like to view...
For the given quadratic equation, use the discriminant to determine the number and type of solutions.x2 + 4x + 7 = 0
A. Two real B. Two nonreal complex C. One real
Write the statement indicated.State the contrapositive of the following:If he is happy, then he is smiling.
A. If he is smiling, then he is happy. B. If he is not happy, then he is not smiling. C. If he is happy, then he is not smiling. D. If he is not smiling, then he is not happy.
Answer the question.When is a parallelogram a rhombus?
What will be an ideal response?
Solve the problem.The function f models the population of Country X from 1991 to 1998. The graphs of f and the horizontal line y = 805 are shown in the figure. Use the graphs to determine the x-values that satisfy (i) the inequality 
and (ii) 
Express your answers symbolically. 
A. {x|x = 1994}; {x|x ? 1994} B. {x|x = 1994}; {x|x > 1994} C. {x|x ? 1994}; {x|x > 1994} D. {x|x > 1994}; {x|x ? 1994}