Question

If A,B are 3×2 order matrices and C is a 2×3 order matrix, then which of the following matrices not defined

• A. $A^{t} + B$
• B. $B + C^{t}$
• C. $A^{t} + C$
• D. $A^{t} + B^{t}$

Answer 1

Answer: (A)

$A^{t} + B$

Answer 2

Order of A is 3 × 2 and order of B is 3 × 2 and order of A' is 2 × 3 then

$= A^{t} + B = \lbrack A^{t}\rbrack_{2 \times 3}$+$\lbrack B\rbrack_{3 \times 2}$is not possible because order are not same.