The order of the matrix - 1 2 3 4 - is-

The correct option is A 2×2 If a matrix has m rows and n columns then its order is m× n Clearly in the given matrix, number of rows and c ...

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Standard XII

Mathematics

Matrix Definition and Representation

The order of ...

Question

The order of the matrix $[\begin{matrix} 1 & 2 3 & 4 \end{matrix}]$ is:

2 \times 2

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4 \times 1

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1 \times 4

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None of these

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Solution

The correct option is A $2 \times 2$
If a matrix has $m$ rows and $n$ columns then its order is $m \times n$
Clearly in the given matrix, number of rows and columns are each $2$
Hence its order is $2 \times 2$

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Similar questions

$\begin{matrix} C H_{3} O - C H = C H - N O_{2} & 1 C H_{2} = C H - N O_{2} & 2 C H_{2} = C H - C l & 3 C H_{2} = C H_{2} & 4 \end{matrix}$

Which of the following is the correct order of bond length among these compounds?

\sqrt{2 \frac{1}{4}} = ?

(a)

2 \frac{1}{2}

(b)

1 \frac{1}{2}

(c)

1 \frac{1}{4}

(d) None of these

$\begin{matrix} A d j o i n t o f t h e m a t r i x N ⎡ ⎢ ⎣ \begin{matrix} - 4 & - 3 & - 3 1 & 0 & 1 4 & 4 & 3 \end{matrix} ⎤ ⎥ ⎦ \end{matrix}$ is

$\begin{matrix} A d j o i n t o f t h e m a t r i x N ⎡ ⎢ ⎣ \begin{matrix} - 4 & - 3 & - 3 1 & 0 & 1 4 & 4 & 3 \end{matrix} ⎤ ⎥ ⎦ \end{matrix}$ is [MP PET 1989]

Q. The rank of the matrix

A = ⎡ ⎢ ⎣ \begin{matrix} 2 & 3 & 1 & 4 0 & 1 & 2 & - 1 0 & - 2 & - 4 & 2 \end{matrix} ⎤ ⎥ ⎦

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The order of the matrix [1234] is:

The correct option is A 2×2If a matrix has m rows and n columns then its order is m×nClearly in the given matrix, number of rows and columns are each 2Hence its order is 2×2

The order of the matrix $[\begin{matrix} 1 & 2 3 & 4 \end{matrix}]$ is:

The correct option is A $2 \times 2$
If a matrix has $m$ rows and $n$ columns then its order is $m \times n$
Clearly in the given matrix, number of rows and columns are each $2$
Hence its order is $2 \times 2$