The number of 3 x 3 non-singular matrices, with four entries as 1 and all other entries as 0, is
less than 4
at least 7
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 non-singular matrices
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