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Question

Mathematics Question on Matrices

If A=(123\[0.3em]425)A=\begin{pmatrix} 1 & -2 & 3 \\\[0.3em] 4 & 2 &5 \end{pmatrix} and A=(13\[0.3em]45\[0.3em]21)A=\begin{pmatrix} 1 & 3 \\\[0.3em] 4 & 5 \\\[0.3em] 2&1 \end{pmatrix}and BA=(bij)BA=(b_{ij}),then b21+b32=b_{21}+b_{32}=

A

2-2

B

16-16

C

1818

D

18-18

Answer

18-18

Explanation

Solution

The correct option is (D): 18-18