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Class 12 Maths Practice Test - Operations on Matrices
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Class 12 Maths Practice Test - Operations on Matrices
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10 Questions

1. If A = \(\begin{bmatrix}3&4\\1&2\end{bmatrix}\) and B = \(\begin{bmatrix}1&5\\2&3\end{bmatrix}\), find 2A-3B.
2. Matrix addition and matrix multiplication both are commutative.
3. Find AB if A = \(\begin{bmatrix}1&2\\3&4\end{bmatrix}\) and B = \(\begin{bmatrix}1&5\\3&2\end{bmatrix}\).
4. The addition of matrices is only possible if they are of the same order.
5. Find AB if A = \(\begin{bmatrix}1&2\\3&4\end{bmatrix}\) and B = \(\begin{bmatrix}1&5\\3&2\end{bmatrix}\).
6. If A+B = \(\begin{bmatrix}6&7\\5&0\end{bmatrix}\)and A = \(\begin{bmatrix}2&5\\1&-1\end{bmatrix}\). Find the matrix B.
7. Let A=\(\begin{bmatrix}3&-5&2\\-4&-6&2\\7&1&5\end{bmatrix}\). Find the additive inverse of A.
8. Which of the following condition is incorrect for matrix multiplication?
9. If A = \(\begin{bmatrix}1&2&3\\9&10&11\end{bmatrix}\) and B = \(\begin{bmatrix}0&5&0\\5&0&5\end{bmatrix}\), then find A+B.
10. Matrix addition and matrix multiplication both are commutative.

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