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  • Stuck here, help me understand: The number of 3 x 3 non-singular matrices, with four entries as 1 and all other entries as 0, is

The number of 3 x 3 non-singular matrices, with four entries as 1 and all other entries as 0, is

  • Option 1)

    less than 4

  • Option 2)

    5

  • Option 3)

    6

  • Option 4)

    at least 7

 

Answers (2)

best_answer

As we learnt in 

Defination of Matrix -

A rectangular array of symbols (which could be real or complex numbers) along rows and columns is a matrix.

-

 

 Use combination method and 4 entries for 1 and others for zero. Then atleast 7 number of 3\times 3 non-singular matrices


Option 1)

less than 4

Incorrect Option

 

Option 2)

5

Incorrect Option

 

Option 3)

6

Incorrect Option

 

Option 4)

at least 7

Correct Option

 

Posted by

prateek

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