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Question

Find the rank of the matrix [12344321] is

A
1
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B
2
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C
3
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D
none of these
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Solution

The correct option is D 2
Rank of matrix [12344321]

Since there are 2 rows and 4 columns are there maximum rank is 2

Now testing the linear dependency of both rows.

Neither row can be described as a scalar multiple of another row
Therefore rank 2

B is correct.

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