If A = [ 2 - 1 3 - 4 5 1 ] and B = [ 2 3 4 - 2 1 5 ] , then:

Question

If $A = [\begin{matrix} 2 & - 1 & 3 \\ - 4 & 5 & 1 \end{matrix}]$ and $B = [\begin{matrix} 2 & 3 \\ 4 & - 2 \\ 1 & 5 \end{matrix}],$ then:

Smart Achievers · Accepted Answer

(3)

Ans. AB and BA both are defined

Explanation:

Let $A = {[a_{i j}]}_{2 \times 3}$ and $B = {[b_{i j}]}_{3 \times 2}$

Both AB and BA are defined.

Want Us to Email you About Special Offers & Updates?