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Please Solve RD Sharma Class 12 Chapter 4 Algebra of Matrices Exercise Very Short Asnwer Question 2 Maths Textbook Solution.

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Answer: AB is a 2\times 2 matrix

                BA is a 3\times 3 matrix

Hint: To solve this type of question, we must know the basics of matrix multiplication.

Given: A=\left [ 2 1 4 4 1 5 \right ] B=\begin{bmatrix} 3 &-1 \\ 2 &2 \\ 1 & 3 \end{bmatrix}

Solution: Here, A is 2\times 3 matrix B is 3\times 2 matrix

\rightarrowSo, AB should have 2\times 2 order

     and BA should have 3\times 3 order

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