Let, A = ⎡ ⎢ ⎣ 4 6 − 1 3 0 2 1 − 2 5 ⎤ ⎥ ⎦ , B = ⎡ ⎢ ⎣ 2 4 0 1 − 1 2 ⎤ ⎥ ⎦ and C = [ 1 2 3 ] The expression which is not defined is: Options: A . &nbsp B ′ B B . &nbsp C A B C . &nbsp A + B ′ D . &nbsp A 2 + A

Let, A=⎡⎢⎣46−13021−25⎤⎥Ⱥ

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Question -

Let,
$A = ⎡ ⎢ ⎣ \begin{matrix} 4 & 6 & - 1 3 & 0 & 2 1 & - 2 & 5 \end{matrix} ⎤ ⎥ ⎦, B = ⎡ ⎢ ⎣ \begin{matrix} 2 & 4 0 & 1 - 1 & 2 \end{matrix} ⎤ ⎥ ⎦$
$and C = [\begin{matrix} 1 & 2 & 3 \end{matrix}]$
The expression which is not defined is:

Options:

A .

B^{'} B

B .

C A B

C .

A + B^{'}

D .

A^{2} + A

Answer: Option C
:
C
We can see from the options that if we take transpose of B,

B^{'}

will be of 2 x 3 matrix which cannot be added to a 3 x 3 matrix, as for the addition the order should be the same.

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