Question

(10

(4 5
از ترا
20
1 2
30
The resulting matrix is a:
2 by 1
O 1 by 2
3 by 1

Answer 1

2 by 1

Explanation:

2 by 1

Answer 2

Given:

The matrix multiplication

`\begin{bmatrix}4&5&6\\1&2&3\end{bmatrix}\begin{bmatrix}10\\20\\30\end{bmatrix}`

To find:

The order of resulting matrix.

Solution:

We know that, if order of first matrix is
`m_1* n_1` and the order of second matrix is
`m_2* n_2`, then the order of these two matrices is
`m_1* n_2`.

We have,

`\begin{bmatrix}4&5&6\\1&2&3\end{bmatrix}\begin{bmatrix}10\\20\\30\end{bmatrix}`

Here, the order of first matrix is
`2* 3` and the order of the second matrix is
`3* 1`. So, the order of the second matrix is
`2* 1`. It is also written are 2 by 1.

Therefore, the correct option is A.